155975164 has 12 divisors (see below), whose sum is σ = 273141288. Its totient is φ = 77934800.

The previous prime is 155975159. The next prime is 155975179. The reversal of 155975164 is 461579551.

It is a self number, because there is not a number n which added to its sum of digits gives 155975164.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6127 + ... + 18694.

It is an arithmetic number, because the mean of its divisors is an integer number (22761774).

Almost surely, 2^155975164 is an apocalyptic number.

It is an amenable number.

155975164 is a deficient number, since it is larger than the sum of its proper divisors (117166124).

155975164 is a wasteful number, since it uses less digits than its factorization.

155975164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26396 (or 26394 counting only the distinct ones).

The product of its digits is 189000, while the sum is 43.

The square root of 155975164 is about 12489.0017215148. The cubic root of 155975164 is about 538.2926918574.

Subtracting from 155975164 its sum of digits (43), we obtain a square (155975121 = 12489²).

The spelling of 155975164 in words is "one hundred fifty-five million, nine hundred seventy-five thousand, one hundred sixty-four".