813091107 has 18 divisors (see below), whose sum is σ = 1101720396. Its totient is φ = 533401200.

The previous prime is 813091099. The next prime is 813091109. The reversal of 813091107 is 701190318.

It is not a de Polignac number, because 813091107 - 2³ = 813091099 is a prime.

It is a super-2 number, since 2×813091107² = 1322234296564970898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (813091109) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4988208 + ... + 4988370.

Almost surely, 2^813091107 is an apocalyptic number.

813091107 is a deficient number, since it is larger than the sum of its proper divisors (288629289).

813091107 is an equidigital number, since it uses as much as digits as its factorization.

813091107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 30.

The square root of 813091107 is about 28514.7524450064. The cubic root of 813091107 is about 933.3540229115.

The spelling of 813091107 in words is "eight hundred thirteen million, ninety-one thousand, one hundred seven".