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135331521 = 3133470039
BaseRepresentation
bin10000001000011…
…11111011000001
3100102122112221120
420010033323001
5234121102041
621232342453
73232204353
oct1004177301
9312575846
10135331521
116a433636
12393a4a29
1322064430
1413d8b0d3
15bd33366
hex810fec1

135331521 has 8 divisors (see below), whose sum is σ = 194322240. Its totient is φ = 83280912.

The previous prime is 135331519. The next prime is 135331571. The reversal of 135331521 is 125133531.

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

It is not a de Polignac number, because 135331521 - 21 = 135331519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135331491 and 135331500.

It is not an unprimeable number, because it can be changed into a prime (135331501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1734981 + ... + 1735058.

It is an arithmetic number, because the mean of its divisors is an integer number (24290280).

Almost surely, 2135331521 is an apocalyptic number.

It is an amenable number.

135331521 is a deficient number, since it is larger than the sum of its proper divisors (58990719).

135331521 is a wasteful number, since it uses less digits than its factorization.

135331521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3470055.

The product of its digits is 1350, while the sum is 24.

The square root of 135331521 is about 11633.2076831801. The cubic root of 135331521 is about 513.4123614298.

The spelling of 135331521 in words is "one hundred thirty-five million, three hundred thirty-one thousand, five hundred twenty-one".

Divisors: 1 3 13 39 3470039 10410117 45110507 135331521