791313131 has 8 divisors (see below), whose sum is σ = 904717824. Its totient is φ = 677998440.

The previous prime is 791313073. The next prime is 791313139. The reversal of 791313131 is 131313197.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-791313131 is a prime.

It is a super-2 number, since 2×791313131² = 1252352942586046322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 791313094 and 791313103.

It is not an unprimeable number, because it can be changed into a prime (791313139) 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 7 ways as a sum of consecutive naturals, for example, 2465 + ... + 39858.

It is an arithmetic number, because the mean of its divisors is an integer number (113089728).

Almost surely, 2^791313131 is an apocalyptic number.

791313131 is a deficient number, since it is larger than the sum of its proper divisors (113404693).

791313131 is a wasteful number, since it uses less digits than its factorization.

791313131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45001.

The product of its digits is 1701, while the sum is 29.

The square root of 791313131 is about 28130.2884983428. The cubic root of 791313131 is about 924.9454580940.

The spelling of 791313131 in words is "seven hundred ninety-one million, three hundred thirteen thousand, one hundred thirty-one".