155052312 has 32 divisors (see below), whose sum is σ = 408033600. Its totient is φ = 48963744.

The previous prime is 155052263. The next prime is 155052341. The reversal of 155052312 is 213250551.

It is a happy number.

155052312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169558 + ... + 170469.

It is an arithmetic number, because the mean of its divisors is an integer number (12751050).

Almost surely, 2^155052312 is an apocalyptic number.

155052312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155052312 is an abundant number, since it is smaller than the sum of its proper divisors (252981288).

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

155052312 is a wasteful number, since it uses less digits than its factorization.

155052312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340055 (or 340051 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 155052312 is about 12452.0003212335. Note that the first 3 decimals coincide. The cubic root of 155052312 is about 537.2289595800.

The spelling of 155052312 in words is "one hundred fifty-five million, fifty-two thousand, three hundred twelve".