913131 has 12 divisors (see below), whose sum is σ = 1338480. Its totient is φ = 599760.

The previous prime is 913103. The next prime is 913139. The reversal of 913131 is 131319.

It is not a de Polignac number, because 913131 - 2⁶ = 913067 is a prime.

It is a super-2 number, since 2×913131² = 1667616446322, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (913139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76 + ... + 1353.

It is an arithmetic number, because the mean of its divisors is an integer number (111540).

2⁹¹³¹³¹ is an apocalyptic number.

913131 is a deficient number, since it is larger than the sum of its proper divisors (425349).

913131 is a wasteful number, since it uses less digits than its factorization.

913131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506 (or 1503 counting only the distinct ones).

The product of its digits is 81, while the sum is 18.

The square root of 913131 is about 955.5788821442. The cubic root of 913131 is about 97.0162228862.

The spelling of 913131 in words is "nine hundred thirteen thousand, one hundred thirty-one".