5312491 has 2 divisors, whose sum is σ = 5312492. Its totient is φ = 5312490.

The previous prime is 5312479. The next prime is 5312507. The reversal of 5312491 is 1942135.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5312491 - 2⁵ = 5312459 is a prime.

It is not a weakly prime, because it can be changed into another prime (5312591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2656245 + 2656246.

It is an arithmetic number, because the mean of its divisors is an integer number (2656246).

Almost surely, 2^5312491 is an apocalyptic number.

5312491 is a deficient number, since it is larger than the sum of its proper divisors (1).

5312491 is an equidigital number, since it uses as much as digits as its factorization.

5312491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 25.

The square root of 5312491 is about 2304.8841619483. The cubic root of 5312491 is about 174.4882026381.

It can be divided in two parts, 53 and 12491, that added together give a square (12544 = 112²).

The spelling of 5312491 in words is "five million, three hundred twelve thousand, four hundred ninety-one".