155902032 has 240 divisors, whose sum is σ = 524841408. Its totient is φ = 42577920.

The previous prime is 155902003. The next prime is 155902051. The reversal of 155902032 is 230209551.

It is a junction number, because it is equal to n+sod(n) for n = 155901987 and 155902005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1379608 + ... + 1379720.

Almost surely, 2^155902032 is an apocalyptic number.

155902032 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 155902032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262420704).

155902032 is an abundant number, since it is smaller than the sum of its proper divisors (368939376).

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

155902032 is a wasteful number, since it uses less digits than its factorization.

155902032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 155902032 is about 12486.0735221286. The cubic root of 155902032 is about 538.2085490270.

The spelling of 155902032 in words is "one hundred fifty-five million, nine hundred two thousand, thirty-two".