920131 has 4 divisors (see below), whose sum is σ = 922264. Its totient is φ = 918000.

The previous prime is 920123. The next prime is 920137. The reversal of 920131 is 131029.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131029 = 283 ⋅463.

It is a cyclic number.

It is not a de Polignac number, because 920131 - 2³ = 920123 is a prime.

It is a super-2 number, since 2×920131² = 1693282114322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (920137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165 + ... + 1366.

It is an arithmetic number, because the mean of its divisors is an integer number (230566).

2⁹²⁰¹³¹ is an apocalyptic number.

920131 is a deficient number, since it is larger than the sum of its proper divisors (2133).

920131 is a wasteful number, since it uses less digits than its factorization.

920131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2132.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 920131 is about 959.2345907024. The cubic root of 920131 is about 97.2634986758.

The spelling of 920131 in words is "nine hundred twenty thousand, one hundred thirty-one".