11137631 has 2 divisors, whose sum is σ = 11137632. Its totient is φ = 11137630.

The previous prime is 11137613. The next prime is 11137661. The reversal of 11137631 is 13673111.

Together with previous prime (11137613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (13673111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11137631 is a prime.

It is a super-2 number, since 2×11137631² = 248093648584322, 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 = 11137597 and 11137606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11137661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5568815 + 5568816.

It is an arithmetic number, because the mean of its divisors is an integer number (5568816).

Almost surely, 2^11137631 is an apocalyptic number.

11137631 is a deficient number, since it is larger than the sum of its proper divisors (1).

11137631 is an equidigital number, since it uses as much as digits as its factorization.

11137631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 378, while the sum is 23.

The square root of 11137631 is about 3337.3089458424. The cubic root of 11137631 is about 223.3217085110.

The spelling of 11137631 in words is "eleven million, one hundred thirty-seven thousand, six hundred thirty-one".