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133554223 = 1153229081
BaseRepresentation
bin1111111010111…
…10000000101111
3100022022020221201
413331132000233
5233142213343
621130310331
73211122625
oct775360057
9308266851
10133554223
116942a2a0
12388883a7
132189148a
1413a47515
15bad194d
hex7f5e02f

133554223 has 8 divisors (see below), whose sum is σ = 148445136. Its totient is φ = 119121600.

The previous prime is 133554199. The next prime is 133554233. The reversal of 133554223 is 322455331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133554223 - 29 = 133553711 is a prime.

It is a super-2 number, since 2×1335542232 = 35673460962267458, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133554191 and 133554200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133554233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113958 + ... + 115123.

It is an arithmetic number, because the mean of its divisors is an integer number (18555642).

Almost surely, 2133554223 is an apocalyptic number.

133554223 is a deficient number, since it is larger than the sum of its proper divisors (14890913).

133554223 is a wasteful number, since it uses less digits than its factorization.

133554223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229145.

The product of its digits is 10800, while the sum is 28.

The square root of 133554223 is about 11556.5662287723. The cubic root of 133554223 is about 511.1549156726.

It can be divided in two parts, 13355 and 4223, that added together give a triangular number (17578 = T187).

The spelling of 133554223 in words is "one hundred thirty-three million, five hundred fifty-four thousand, two hundred twenty-three".

Divisors: 1 11 53 583 229081 2519891 12141293 133554223