231542355 has 16 divisors (see below), whose sum is σ = 404146944. Its totient is φ = 112262880.

The previous prime is 231542347. The next prime is 231542359. The reversal of 231542355 is 553245132.

It is not a de Polignac number, because 231542355 - 2³ = 231542347 is a prime.

It is a super-2 number, since 2×231542355² = 107223724317892050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231542359) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 701479 + ... + 701808.

It is an arithmetic number, because the mean of its divisors is an integer number (25259184).

Almost surely, 2^231542355 is an apocalyptic number.

231542355 is a deficient number, since it is larger than the sum of its proper divisors (172604589).

231542355 is a wasteful number, since it uses less digits than its factorization.

231542355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1403306.

The product of its digits is 18000, while the sum is 30.

The square root of 231542355 is about 15216.5158627065. The cubic root of 231542355 is about 614.0590674464.

Adding to 231542355 its reverse (553245132), we get a palindrome (784787487).

The spelling of 231542355 in words is "two hundred thirty-one million, five hundred forty-two thousand, three hundred fifty-five".