1304077631 has 4 divisors (see below), whose sum is σ = 1306185000. Its totient is φ = 1301970264.

The previous prime is 1304077627. The next prime is 1304077637. The reversal of 1304077631 is 1367704031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1304077631 - 2² = 1304077627 is a prime.

It is a super-2 number, since 2×1304077631² = 3401236935349144322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304077637) 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 3 ways as a sum of consecutive naturals, for example, 1052756 + ... + 1053993.

It is an arithmetic number, because the mean of its divisors is an integer number (326546250).

Almost surely, 2^1304077631 is an apocalyptic number.

1304077631 is a deficient number, since it is larger than the sum of its proper divisors (2107369).

1304077631 is an equidigital number, since it uses as much as digits as its factorization.

1304077631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2107368.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 1304077631 is about 36112.0150503956. The cubic root of 1304077631 is about 1092.5327939719.

The spelling of 1304077631 in words is "one billion, three hundred four million, seventy-seven thousand, six hundred thirty-one".