155332452 has 48 divisors (see below), whose sum is σ = 396152064. Its totient is φ = 46980000.

The previous prime is 155332447. The next prime is 155332481. The reversal of 155332452 is 254233551.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

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, 106327 + ... + 107777.

It is an arithmetic number, because the mean of its divisors is an integer number (8253168).

Almost surely, 2^155332452 is an apocalyptic number.

155332452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155332452 is an abundant number, since it is smaller than the sum of its proper divisors (240819612).

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

155332452 is a wasteful number, since it uses less digits than its factorization.

155332452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2280 (or 2278 counting only the distinct ones).

The product of its digits is 18000, while the sum is 30.

The square root of 155332452 is about 12463.2440399761. The cubic root of 155332452 is about 537.5523101785.

The spelling of 155332452 in words is "one hundred fifty-five million, three hundred thirty-two thousand, four hundred fifty-two".