1012631 has 2 divisors, whose sum is σ = 1012632. Its totient is φ = 1012630.

The previous prime is 1012619. The next prime is 1012633. The reversal of 1012631 is 1362101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1012631 - 2¹⁸ = 750487 is a prime.

It is a super-2 number, since 2×1012631² = 2050843084322, which contains 22 as substring.

Together with 1012633, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506315 + 506316.

It is an arithmetic number, because the mean of its divisors is an integer number (506316).

2^1012631 is an apocalyptic number.

1012631 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012631 is an equidigital number, since it uses as much as digits as its factorization.

1012631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1012631 is about 1006.2956821929. The cubic root of 1012631 is about 100.4192729782.

Adding to 1012631 its reverse (1362101), we get a palindrome (2374732).

The spelling of 1012631 in words is "one million, twelve thousand, six hundred thirty-one".