11916131 has 2 divisors, whose sum is σ = 11916132. Its totient is φ = 11916130.

The previous prime is 11916127. The next prime is 11916137. The reversal of 11916131 is 13161911.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11916131 - 2² = 11916127 is a prime.

It is a super-2 number, since 2×11916131² = 283988356018322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 11916097 and 11916106.

It is not a weakly prime, because it can be changed into another prime (11916137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5958065 + 5958066.

It is an arithmetic number, because the mean of its divisors is an integer number (5958066).

Almost surely, 2^11916131 is an apocalyptic number.

11916131 is a deficient number, since it is larger than the sum of its proper divisors (1).

11916131 is an equidigital number, since it uses as much as digits as its factorization.

11916131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 162, while the sum is 23.

The square root of 11916131 is about 3451.9749419716. The cubic root of 11916131 is about 228.4082341992.

The spelling of 11916131 in words is "eleven million, nine hundred sixteen thousand, one hundred thirty-one".