1304162631 has 12 divisors (see below), whose sum is σ = 1890223608. Its totient is φ = 866472624.

The previous prime is 1304162621. The next prime is 1304162669. The reversal of 1304162631 is 1362614031.

1304162631 is a `hidden beast` number, since 1 + 3 + 0 + 4 + 1 + 626 + 31 = 666.

It is not a de Polignac number, because 1304162631 - 2¹⁵ = 1304129863 is a prime.

It is a super-2 number, since 2×1304162631² = 3401680336193684322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1304162595 and 1304162604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304162611) 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 11 ways as a sum of consecutive naturals, for example, 244645 + ... + 249918.

It is an arithmetic number, because the mean of its divisors is an integer number (157518634).

Almost surely, 2^1304162631 is an apocalyptic number.

1304162631 is a deficient number, since it is larger than the sum of its proper divisors (586060977).

1304162631 is a wasteful number, since it uses less digits than its factorization.

1304162631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494862 (or 494859 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 1304162631 is about 36113.1919248354. The cubic root of 1304162631 is about 1092.5565306134.

Adding to 1304162631 its reverse (1362614031), we get a palindrome (2666776662).

The spelling of 1304162631 in words is "one billion, three hundred four million, one hundred sixty-two thousand, six hundred thirty-one".