1304382631 has 2 divisors, whose sum is σ = 1304382632. Its totient is φ = 1304382630.

The previous prime is 1304382593. The next prime is 1304382649. The reversal of 1304382631 is 1362834031.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1304382631 is a prime.

It is a super-2 number, since 2×1304382631² = 3402828096108964322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1304382593 and 1304382602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1304382731) 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 as a sum of consecutive naturals, namely, 652191315 + 652191316.

It is an arithmetic number, because the mean of its divisors is an integer number (652191316).

Almost surely, 2^1304382631 is an apocalyptic number.

1304382631 is a deficient number, since it is larger than the sum of its proper divisors (1).

1304382631 is an equidigital number, since it uses as much as digits as its factorization.

1304382631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 1304382631 is about 36116.2377747185. The cubic root of 1304382631 is about 1092.6179618380.

The spelling of 1304382631 in words is "one billion, three hundred four million, three hundred eighty-two thousand, six hundred thirty-one".