162423631 has 12 divisors (see below), whose sum is σ = 170412480. Its totient is φ = 154795520.

The previous prime is 162423623. The next prime is 162423649. The reversal of 162423631 is 136324261.

It is not a de Polignac number, because 162423631 - 2³ = 162423623 is a prime.

It is a super-2 number, since 2×162423631² = 52762871814448322, 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 162423631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162423691) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 253071 + ... + 253711.

It is an arithmetic number, because the mean of its divisors is an integer number (14201040).

Almost surely, 2^162423631 is an apocalyptic number.

162423631 is a deficient number, since it is larger than the sum of its proper divisors (7988849).

162423631 is an equidigital number, since it uses as much as digits as its factorization.

162423631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166 (or 1143 counting only the distinct ones).

The product of its digits is 5184, while the sum is 28.

The square root of 162423631 is about 12744.5529933380. The cubic root of 162423631 is about 545.6109424091.

Adding to 162423631 its reverse (136324261), we get a palindrome (298747892).

The spelling of 162423631 in words is "one hundred sixty-two million, four hundred twenty-three thousand, six hundred thirty-one".