164981934 has 48 divisors (see below), whose sum is σ = 399230832. Its totient is φ = 50761728.

The previous prime is 164981903. The next prime is 164981953. The reversal of 164981934 is 439189461.

It is a self number, because there is not a number n which added to its sum of digits gives 164981934.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6739 + ... + 19374.

It is an arithmetic number, because the mean of its divisors is an integer number (8317309).

Almost surely, 2^164981934 is an apocalyptic number.

164981934 is an abundant number, since it is smaller than the sum of its proper divisors (234248898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164981934 is a wasteful number, since it uses less digits than its factorization.

164981934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26143 (or 26131 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 164981934 is about 12844.5293413188. The cubic root of 164981934 is about 548.4606366308.

The spelling of 164981934 in words is "one hundred sixty-four million, nine hundred eighty-one thousand, nine hundred thirty-four".