2431291 has 2 divisors, whose sum is σ = 2431292. Its totient is φ = 2431290.

The previous prime is 2431283. The next prime is 2431301. The reversal of 2431291 is 1921342.

2431291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2431291 - 2³ = 2431283 is a prime.

It is a super-2 number, since 2×2431291² = 11822351853362, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2431201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1215645 + 1215646.

It is an arithmetic number, because the mean of its divisors is an integer number (1215646).

2^2431291 is an apocalyptic number.

2431291 is a deficient number, since it is larger than the sum of its proper divisors (1).

2431291 is an equidigital number, since it uses as much as digits as its factorization.

2431291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 22.

The square root of 2431291 is about 1559.2597602709. The cubic root of 2431291 is about 134.4659467970.

The spelling of 2431291 in words is "two million, four hundred thirty-one thousand, two hundred ninety-one".