231542346 has 48 divisors (see below), whose sum is σ = 570390336. Its totient is φ = 62262144.

The previous prime is 231542323. The next prime is 231542347. The reversal of 231542346 is 643245132.

231542346 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×231542346² = 107223715982367432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231542347) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18166 + ... + 28161.

It is an arithmetic number, because the mean of its divisors is an integer number (11883132).

Almost surely, 2^231542346 is an apocalyptic number.

231542346 is an abundant number, since it is smaller than the sum of its proper divisors (338847990).

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

231542346 is a wasteful number, since it uses less digits than its factorization.

231542346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46363 (or 46356 counting only the distinct ones).

The product of its digits is 17280, while the sum is 30.

The square root of 231542346 is about 15216.5155669752. The cubic root of 231542346 is about 614.0590594903.

Adding to 231542346 its reverse (643245132), we get a palindrome (874787478).

The spelling of 231542346 in words is "two hundred thirty-one million, five hundred forty-two thousand, three hundred forty-six".