155155312 has 20 divisors (see below), whose sum is σ = 323737960. Its totient is φ = 71610048.

The previous prime is 155155271. The next prime is 155155313. The reversal of 155155312 is 213551551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155155313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 372762 + ... + 373177.

It is an arithmetic number, because the mean of its divisors is an integer number (16186898).

Almost surely, 2^155155312 is an apocalyptic number.

It is an amenable number.

155155312 is an abundant number, since it is smaller than the sum of its proper divisors (168582648).

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

155155312 is a wasteful number, since it uses less digits than its factorization.

155155312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745960 (or 745954 counting only the distinct ones).

The product of its digits is 3750, while the sum is 28.

The square root of 155155312 is about 12456.1355162827. The cubic root of 155155312 is about 537.3478922032.

The spelling of 155155312 in words is "one hundred fifty-five million, one hundred fifty-five thousand, three hundred twelve".