2455131491 has 2 divisors, whose sum is σ = 2455131492. Its totient is φ = 2455131490.

The previous prime is 2455131479. The next prime is 2455131509. The reversal of 2455131491 is 1941315542.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2455131491 is a prime.

It is not a weakly prime, because it can be changed into another prime (2455131421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1227565745 + 1227565746.

It is an arithmetic number, because the mean of its divisors is an integer number (1227565746).

Almost surely, 2^2455131491 is an apocalyptic number.

2455131491 is a deficient number, since it is larger than the sum of its proper divisors (1).

2455131491 is an equidigital number, since it uses as much as digits as its factorization.

2455131491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 35.

The square root of 2455131491 is about 49549.2834559694. The cubic root of 2455131491 is about 1349.0402856195.

The spelling of 2455131491 in words is "two billion, four hundred fifty-five million, one hundred thirty-one thousand, four hundred ninety-one".