3136631 has 2 divisors, whose sum is σ = 3136632. Its totient is φ = 3136630.

The previous prime is 3136607. The next prime is 3136633. The reversal of 3136631 is 1366313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3136631 - 2¹⁰ = 3135607 is a prime.

It is a super-2 number, since 2×3136631² = 19676908060322, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 3136633, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3136597 and 3136606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3136633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1568315 + 1568316.

It is an arithmetic number, because the mean of its divisors is an integer number (1568316).

Almost surely, 2^3136631 is an apocalyptic number.

3136631 is a deficient number, since it is larger than the sum of its proper divisors (1).

3136631 is an equidigital number, since it uses as much as digits as its factorization.

3136631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 972, while the sum is 23.

The square root of 3136631 is about 1771.0536411978. The cubic root of 3136631 is about 146.3820450125.

The spelling of 3136631 in words is "three million, one hundred thirty-six thousand, six hundred thirty-one".