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164741231 = 1131457887
BaseRepresentation
bin10011101000111…
…00000001101111
3102110222201111002
421310130001233
5314133204411
624202550515
74040164064
oct1164340157
9373881432
10164741231
1184aa0586
124720843b
1328190825
1417c44c6b
15e6e233b
hex9d1c06f

164741231 has 4 divisors (see below), whose sum is σ = 166199232. Its totient is φ = 163283232.

The previous prime is 164741209. The next prime is 164741261. The reversal of 164741231 is 132147461.

It is a happy number.

164741231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 164741231 - 26 = 164741167 is a prime.

It is a super-2 number, since 2×1647412312 = 54279346382790722, 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 = 164741194 and 164741203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164741261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 728831 + ... + 729056.

It is an arithmetic number, because the mean of its divisors is an integer number (41549808).

Almost surely, 2164741231 is an apocalyptic number.

164741231 is a deficient number, since it is larger than the sum of its proper divisors (1458001).

164741231 is a wasteful number, since it uses less digits than its factorization.

164741231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1458000.

The product of its digits is 4032, while the sum is 29.

The square root of 164741231 is about 12835.1560567061. The cubic root of 164741231 is about 548.1937783717.

Adding to 164741231 its reverse (132147461), we get a palindrome (296888692).

The spelling of 164741231 in words is "one hundred sixty-four million, seven hundred forty-one thousand, two hundred thirty-one".

Divisors: 1 113 1457887 164741231