155132928 has 176 divisors, whose sum is σ = 476869120. Its totient is φ = 49766400.

The previous prime is 155132903. The next prime is 155132981. The reversal of 155132928 is 829231551.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 155132892 and 155132901.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 856998 + ... + 857178.

Almost surely, 2^155132928 is an apocalyptic number.

155132928 is a gapful number since it is divisible by the number (18) 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 155132928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238434560).

155132928 is an abundant number, since it is smaller than the sum of its proper divisors (321736192).

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

155132928 is a wasteful number, since it uses less digits than its factorization.

155132928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241 (or 217 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 155132928 is about 12455.2369708488. The cubic root of 155132928 is about 537.3220501968.

The spelling of 155132928 in words is "one hundred fifty-five million, one hundred thirty-two thousand, nine hundred twenty-eight".