155430156 has 72 divisors (see below), whose sum is σ = 435542016. Its totient is φ = 42971040.

The previous prime is 155430103. The next prime is 155430161. The reversal of 155430156 is 651034551.

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, 13965 + ... + 22491.

Almost surely, 2^155430156 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 155430156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217771008).

155430156 is an abundant number, since it is smaller than the sum of its proper divisors (280111860).

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

155430156 is a wasteful number, since it uses less digits than its factorization.

155430156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8579 (or 8570 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 155430156 is about 12467.1631095450. The cubic root of 155430156 is about 537.6649932274.

The spelling of 155430156 in words is "one hundred fifty-five million, four hundred thirty thousand, one hundred fifty-six".