11613631 has 2 divisors, whose sum is σ = 11613632. Its totient is φ = 11613630.

The previous prime is 11613629. The next prime is 11613649. The reversal of 11613631 is 13631611.

It is a happy number.

11613631 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11613631 - 2¹ = 11613629 is a prime.

It is a super-2 number, since 2×11613631² = 269752850008322, which contains 22 as substring.

Together with 11613629, 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 (11613691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5806815 + 5806816.

It is an arithmetic number, because the mean of its divisors is an integer number (5806816).

Almost surely, 2^11613631 is an apocalyptic number.

11613631 is a deficient number, since it is larger than the sum of its proper divisors (1).

11613631 is an equidigital number, since it uses as much as digits as its factorization.

11613631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 324, while the sum is 22.

The square root of 11613631 is about 3407.8777853673. The cubic root of 11613631 is about 226.4588726662.

The spelling of 11613631 in words is "eleven million, six hundred thirteen thousand, six hundred thirty-one".