6455739131 has 4 divisors (see below), whose sum is σ = 6460993200. Its totient is φ = 6450485064.

The previous prime is 6455739083. The next prime is 6455739161. The reversal of 6455739131 is 1319375546.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6455739131 is a prime.

It is a super-2 number, since 2×6455739131² = 83353135455049270322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6455739161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2625191 + ... + 2627648.

It is an arithmetic number, because the mean of its divisors is an integer number (1615248300).

Almost surely, 2^6455739131 is an apocalyptic number.

6455739131 is a deficient number, since it is larger than the sum of its proper divisors (5254069).

6455739131 is a wasteful number, since it uses less digits than its factorization.

6455739131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5254068.

The product of its digits is 340200, while the sum is 44.

The square root of 6455739131 is about 80347.6143454179. The cubic root of 6455739131 is about 1862.0099222325.

The spelling of 6455739131 in words is "six billion, four hundred fifty-five million, seven hundred thirty-nine thousand, one hundred thirty-one".