1012867631 has 2 divisors, whose sum is σ = 1012867632. Its totient is φ = 1012867630.

The previous prime is 1012867621. The next prime is 1012867657. The reversal of 1012867631 is 1367682101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1012867631 - 2¹⁴ = 1012851247 is a prime.

It is a super-2 number, since 2×1012867631² = 2051801675855104322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1012867591 and 1012867600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012867621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506433815 + 506433816.

It is an arithmetic number, because the mean of its divisors is an integer number (506433816).

Almost surely, 2^1012867631 is an apocalyptic number.

1012867631 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012867631 is an equidigital number, since it uses as much as digits as its factorization.

1012867631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 1012867631 is about 31825.5813929612. The cubic root of 1012867631 is about 1004.2709434070.

The spelling of 1012867631 in words is "one billion, twelve million, eight hundred sixty-seven thousand, six hundred thirty-one".