813254375 has 20 divisors (see below), whose sum is σ = 1031463576. Its totient is φ = 640860000.

The previous prime is 813254371. The next prime is 813254437. The reversal of 813254375 is 573452318.

It is not a de Polignac number, because 813254375 - 2² = 813254371 is a prime.

It is a super-2 number, since 2×813254375² = 1322765356913281250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813254371) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 32165 + ... + 51585.

Almost surely, 2^813254375 is an apocalyptic number.

813254375 is a deficient number, since it is larger than the sum of its proper divisors (218209201).

813254375 is an equidigital number, since it uses as much as digits as its factorization.

813254375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19508 (or 19493 counting only the distinct ones).

The product of its digits is 100800, while the sum is 38.

The square root of 813254375 is about 28517.6151702768. The cubic root of 813254375 is about 933.4164909608.

The spelling of 813254375 in words is "eight hundred thirteen million, two hundred fifty-four thousand, three hundred seventy-five".