155560132 has 96 divisors (see below), whose sum is σ = 370524672. Its totient is φ = 55351296.

The previous prime is 155560127. The next prime is 155560157. The reversal of 155560132 is 231065551.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 155560132.

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 31 ways as a sum of consecutive naturals, for example, 141778 + ... + 142870.

It is an arithmetic number, because the mean of its divisors is an integer number (3859632).

Almost surely, 2^155560132 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 155560132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185262336).

155560132 is an abundant number, since it is smaller than the sum of its proper divisors (214964540).

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

155560132 is a wasteful number, since it uses less digits than its factorization.

155560132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157 (or 1155 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 155560132 is about 12472.3747538310. The cubic root of 155560132 is about 537.8148227421.

The spelling of 155560132 in words is "one hundred fifty-five million, five hundred sixty thousand, one hundred thirty-two".