785675131 has 4 divisors (see below), whose sum is σ = 806909632. Its totient is φ = 764440632.

The previous prime is 785675083. The next prime is 785675153. The reversal of 785675131 is 131576587.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131576587 = 73 ⋅1802419.

It is a cyclic number.

It is not a de Polignac number, because 785675131 - 2⁹ = 785674619 is a prime.

It is a super-2 number, since 2×785675131² = 1234570822943734322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (785675531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10617195 + ... + 10617268.

It is an arithmetic number, because the mean of its divisors is an integer number (201727408).

Almost surely, 2^785675131 is an apocalyptic number.

785675131 is a deficient number, since it is larger than the sum of its proper divisors (21234501).

785675131 is a wasteful number, since it uses less digits than its factorization.

785675131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21234500.

The product of its digits is 176400, while the sum is 43.

The square root of 785675131 is about 28029.8970922121. The cubic root of 785675131 is about 922.7435161307.

The spelling of 785675131 in words is "seven hundred eighty-five million, six hundred seventy-five thousand, one hundred thirty-one".