232155987 has 32 divisors (see below), whose sum is σ = 360883200. Its totient is φ = 130014720.

The previous prime is 232155949. The next prime is 232156021. The reversal of 232155987 is 789551232.

It is a happy number.

It is not a de Polignac number, because 232155987 - 2¹² = 232151891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (232155907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 304687 + ... + 305447.

It is an arithmetic number, because the mean of its divisors is an integer number (11277600).

Almost surely, 2^232155987 is an apocalyptic number.

232155987 is a deficient number, since it is larger than the sum of its proper divisors (128727213).

232155987 is a wasteful number, since it uses less digits than its factorization.

232155987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043.

The product of its digits is 151200, while the sum is 42.

The square root of 232155987 is about 15236.6658754466. The cubic root of 232155987 is about 614.6010473549.

The spelling of 232155987 in words is "two hundred thirty-two million, one hundred fifty-five thousand, nine hundred eighty-seven".