162631 has 6 divisors (see below), whose sum is σ = 189240. Its totient is φ = 139356.

The previous prime is 162629. The next prime is 162641. The reversal of 162631 is 136261.

It is not a de Polignac number, because 162631 - 2¹ = 162629 is a prime.

It is a super-2 number, since 2×162631² = 52897684322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 162599 and 162608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1611 + ... + 1708.

It is an arithmetic number, because the mean of its divisors is an integer number (31540).

2¹⁶²⁶³¹ is an apocalyptic number.

162631 is a deficient number, since it is larger than the sum of its proper divisors (26609).

162631 is an equidigital number, since it uses as much as digits as its factorization.

162631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3333 (or 3326 counting only the distinct ones).

The product of its digits is 216, while the sum is 19.

The square root of 162631 is about 403.2753401834. The cubic root of 162631 is about 54.5843040572.

Adding to 162631 its reverse (136261), we get a palindrome (298892).

The spelling of 162631 in words is "one hundred sixty-two thousand, six hundred thirty-one".