155130432 has 56 divisors (see below), whose sum is σ = 411857952. Its totient is φ = 51532800.

The previous prime is 155130431. The next prime is 155130449. The reversal of 155130432 is 234031551.

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

It is not an unprimeable number, because it can be changed into a prime (155130431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62332 + ... + 64772.

Almost surely, 2^155130432 is an apocalyptic number.

155130432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155130432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205928976).

155130432 is an abundant number, since it is smaller than the sum of its proper divisors (256727520).

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

155130432 is a wasteful number, since it uses less digits than its factorization.

155130432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2787 (or 2777 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 155130432 is about 12455.1367716296. The cubic root of 155130432 is about 537.3191684466.

Adding to 155130432 its reverse (234031551), we get a palindrome (389161983).

The spelling of 155130432 in words is "one hundred fifty-five million, one hundred thirty thousand, four hundred thirty-two".