11499431 has 2 divisors, whose sum is σ = 11499432. Its totient is φ = 11499430.

The previous prime is 11499413. The next prime is 11499437. The reversal of 11499431 is 13499411.

Together with previous prime (11499413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11499431 is a prime.

It is a super-2 number, since 2×11499431² = 264473826647522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11499437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5749715 + 5749716.

It is an arithmetic number, because the mean of its divisors is an integer number (5749716).

Almost surely, 2^11499431 is an apocalyptic number.

11499431 is a deficient number, since it is larger than the sum of its proper divisors (1).

11499431 is an equidigital number, since it uses as much as digits as its factorization.

11499431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 32.

The square root of 11499431 is about 3391.0810960518. The cubic root of 11499431 is about 225.7141490031.

The spelling of 11499431 in words is "eleven million, four hundred ninety-nine thousand, four hundred thirty-one".