231541542 has 24 divisors (see below), whose sum is σ = 517857600. Its totient is φ = 74690640.

The previous prime is 231541517. The next prime is 231541567. The reversal of 231541542 is 245145132.

231541542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (231541517) and next prime (231541567).

It is a super-2 number, since 2×231541542² = 107222971343475528, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 206917 + ... + 208032.

It is an arithmetic number, because the mean of its divisors is an integer number (21577400).

Almost surely, 2^231541542 is an apocalyptic number.

231541542 is an abundant number, since it is smaller than the sum of its proper divisors (286316058).

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

231541542 is a wasteful number, since it uses less digits than its factorization.

231541542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414988 (or 414985 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 231541542 is about 15216.4891482891. The cubic root of 231541542 is about 614.0583487434.

Adding to 231541542 its reverse (245145132), we get a palindrome (476686674).

The spelling of 231541542 in words is "two hundred thirty-one million, five hundred forty-one thousand, five hundred forty-two".