155352232 has 32 divisors (see below), whose sum is σ = 333357120. Its totient is φ = 66487680.

The previous prime is 155352209. The next prime is 155352257. The reversal of 155352232 is 232253551.

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 155352232.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52948 + ... + 55804.

It is an arithmetic number, because the mean of its divisors is an integer number (10417410).

Almost surely, 2^155352232 is an apocalyptic number.

It is an amenable number.

155352232 is an abundant number, since it is smaller than the sum of its proper divisors (178004888).

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

155352232 is a wasteful number, since it uses less digits than its factorization.

155352232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3841 (or 3837 counting only the distinct ones).

The product of its digits is 9000, while the sum is 28.

The square root of 155352232 is about 12464.0375480821. The cubic root of 155352232 is about 537.5751264740.

The spelling of 155352232 in words is "one hundred fifty-five million, three hundred fifty-two thousand, two hundred thirty-two".