231526042 has 48 divisors (see below), whose sum is σ = 401521536. Its totient is φ = 99249600.

The previous prime is 231526019. The next prime is 231526067. The reversal of 231526042 is 240625132.

231526042 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 231525998 and 231526016.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 993558 + ... + 993790.

It is an arithmetic number, because the mean of its divisors is an integer number (8365032).

Almost surely, 2^231526042 is an apocalyptic number.

231526042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

231526042 is a deficient number, since it is larger than the sum of its proper divisors (169995494).

231526042 is a wasteful number, since it uses less digits than its factorization.

231526042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355 (or 324 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 231526042 is about 15215.9798238562. The cubic root of 231526042 is about 614.0446462105.

The spelling of 231526042 in words is "two hundred thirty-one million, five hundred twenty-six thousand, forty-two".