155022156 has 72 divisors (see below), whose sum is σ = 405305264. Its totient is φ = 49921920.

The previous prime is 155022149. The next prime is 155022163. The reversal of 155022156 is 651220551.

155022156 is a `hidden beast` number, since 1 + 5 + 502 + 2 + 156 = 666.

It is an interprime number because it is at equal distance from previous prime (155022149) and next prime (155022163).

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, 240771 + ... + 241413.

Almost surely, 2^155022156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155022156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202652632).

155022156 is an abundant number, since it is smaller than the sum of its proper divisors (250283108).

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

155022156 is a wasteful number, since it uses less digits than its factorization.

155022156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871 (or 866 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 155022156 is about 12450.7893725659. The cubic root of 155022156 is about 537.1941289118.

The spelling of 155022156 in words is "one hundred fifty-five million, twenty-two thousand, one hundred fifty-six".