164929121 has 12 divisors (see below), whose sum is σ = 200232768. Its totient is φ = 133050432.

The previous prime is 164929097. The next prime is 164929129. The reversal of 164929121 is 121929461.

164929121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-164929121 is a prime.

It is a super-2 number, since 2×164929121² = 54403229907665282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164929129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38741 + ... + 42786.

It is an arithmetic number, because the mean of its divisors is an integer number (16686064).

Almost surely, 2^164929121 is an apocalyptic number.

It is an amenable number.

164929121 is a deficient number, since it is larger than the sum of its proper divisors (35303647).

164929121 is an equidigital number, since it uses as much as digits as its factorization.

164929121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81568 (or 81551 counting only the distinct ones).

The product of its digits is 7776, while the sum is 35.

The square root of 164929121 is about 12842.4733209768. The cubic root of 164929121 is about 548.4021071053.

The spelling of 164929121 in words is "one hundred sixty-four million, nine hundred twenty-nine thousand, one hundred twenty-one".