155604612 has 24 divisors (see below), whose sum is σ = 363928096. Its totient is φ = 51746688.

The previous prime is 155604607. The next prime is 155604629. The reversal of 155604612 is 216406551.

It is a self number, because there is not a number n which added to its sum of digits gives 155604612.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9778 + ... + 20169.

Almost surely, 2^155604612 is an apocalyptic number.

155604612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155604612 is an abundant number, since it is smaller than the sum of its proper divisors (208323484).

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

155604612 is a wasteful number, since it uses less digits than its factorization.

155604612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30387 (or 30385 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 155604612 is about 12474.1577671601. The cubic root of 155604612 is about 537.8660777848.

The spelling of 155604612 in words is "one hundred fifty-five million, six hundred four thousand, six hundred twelve".