162315231 has 16 divisors (see below), whose sum is σ = 234380160. Its totient is φ = 99324000.

The previous prime is 162315229. The next prime is 162315247. The reversal of 162315231 is 132513261.

It is not a de Polignac number, because 162315231 - 2¹ = 162315229 is a prime.

It is a super-2 number, since 2×162315231² = 52692468429166722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162315211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4645 + ... + 18606.

It is an arithmetic number, because the mean of its divisors is an integer number (14648760).

Almost surely, 2^162315231 is an apocalyptic number.

162315231 is a deficient number, since it is larger than the sum of its proper divisors (72064929).

162315231 is a wasteful number, since it uses less digits than its factorization.

162315231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23446.

The product of its digits is 1080, while the sum is 24.

The square root of 162315231 is about 12740.2994862758. The cubic root of 162315231 is about 545.4895368638.

Adding to 162315231 its reverse (132513261), we get a palindrome (294828492).

The spelling of 162315231 in words is "one hundred sixty-two million, three hundred fifteen thousand, two hundred thirty-one".