11162491 has 2 divisors, whose sum is σ = 11162492. Its totient is φ = 11162490.

The previous prime is 11162471. The next prime is 11162497. The reversal of 11162491 is 19426111.

It is a strong prime.

It is an emirp because it is prime and its reverse (19426111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11162491 is a prime.

It is a nialpdrome in base 15.

It is not a weakly prime, because it can be changed into another prime (11162497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5581245 + 5581246.

It is an arithmetic number, because the mean of its divisors is an integer number (5581246).

Almost surely, 2^11162491 is an apocalyptic number.

11162491 is a deficient number, since it is larger than the sum of its proper divisors (1).

11162491 is an equidigital number, since it uses as much as digits as its factorization.

11162491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 25.

The square root of 11162491 is about 3341.0314275684. The cubic root of 11162491 is about 223.4877417884.

The spelling of 11162491 in words is "eleven million, one hundred sixty-two thousand, four hundred ninety-one".