162631851131 has 2 divisors, whose sum is σ = 162631851132. Its totient is φ = 162631851130.

The previous prime is 162631851113. The next prime is 162631851229. The reversal of 162631851131 is 131158136261.

It is a happy number.

Together with previous prime (162631851113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-162631851131 is a prime.

It is a super-2 number, since 2×162631851131² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (162631857131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81315925565 + 81315925566.

It is an arithmetic number, because the mean of its divisors is an integer number (81315925566).

Almost surely, 2^162631851131 is an apocalyptic number.

162631851131 is a deficient number, since it is larger than the sum of its proper divisors (1).

162631851131 is an equidigital number, since it uses as much as digits as its factorization.

162631851131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 38.

Adding to 162631851131 its reverse (131158136261), we get a palindrome (293789987392).

The spelling of 162631851131 in words is "one hundred sixty-two billion, six hundred thirty-one million, eight hundred fifty-one thousand, one hundred thirty-one".