315542231 has 8 divisors (see below), whose sum is σ = 322017984. Its totient is φ = 309085920.

The previous prime is 315542197. The next prime is 315542257. The reversal of 315542231 is 132245513.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 315542231 - 2⁶ = 315542167 is a prime.

It is a super-2 number, since 2×315542231² = 199133799088914722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 315542231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315542131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30530 + ... + 39536.

It is an arithmetic number, because the mean of its divisors is an integer number (40252248).

Almost surely, 2^315542231 is an apocalyptic number.

315542231 is a deficient number, since it is larger than the sum of its proper divisors (6475753).

315542231 is an equidigital number, since it uses as much as digits as its factorization.

315542231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9721.

The product of its digits is 3600, while the sum is 26.

The square root of 315542231 is about 17763.5084090953. The cubic root of 315542231 is about 680.7993994008.

Adding to 315542231 its reverse (132245513), we get a palindrome (447787744).

The spelling of 315542231 in words is "three hundred fifteen million, five hundred forty-two thousand, two hundred thirty-one".