231542888 has 16 divisors (see below), whose sum is σ = 440623680. Its totient is φ = 114043248.

The previous prime is 231542887. The next prime is 231542903. The reversal of 231542888 is 888245132.

It is a super-2 number, since 2×231542888² = 107224217966761088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231542881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215456 + ... + 216527.

It is an arithmetic number, because the mean of its divisors is an integer number (27538980).

Almost surely, 2^231542888 is an apocalyptic number.

It is an amenable number.

231542888 is a deficient number, since it is larger than the sum of its proper divisors (209080792).

231542888 is a wasteful number, since it uses less digits than its factorization.

231542888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432056 (or 432052 counting only the distinct ones).

The product of its digits is 122880, while the sum is 41.

The square root of 231542888 is about 15216.5333765612. The cubic root of 231542888 is about 614.0595386248.

The spelling of 231542888 in words is "two hundred thirty-one million, five hundred forty-two thousand, eight hundred eighty-eight".