923131 has 4 divisors (see below), whose sum is σ = 1007064. Its totient is φ = 839200.

The previous prime is 923129. The next prime is 923137. The reversal of 923131 is 131329.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131329 = 11 ⋅11939.

It is a cyclic number.

It is not a de Polignac number, because 923131 - 2¹ = 923129 is a prime.

It is a super-2 number, since 2×923131² = 1704341686322, which contains 22 as substring.

It is a Duffinian number.

923131 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 923099 and 923108.

It is not an unprimeable number, because it can be changed into a prime (923137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41950 + ... + 41971.

It is an arithmetic number, because the mean of its divisors is an integer number (251766).

2⁹²³¹³¹ is an apocalyptic number.

923131 is a deficient number, since it is larger than the sum of its proper divisors (83933).

923131 is a wasteful number, since it uses less digits than its factorization.

923131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83932.

The product of its digits is 162, while the sum is 19.

The square root of 923131 is about 960.7970649414. The cubic root of 923131 is about 97.3690901444.

It can be divided in two parts, 92 and 3131, that added together give a palindrome (3223).

The spelling of 923131 in words is "nine hundred twenty-three thousand, one hundred thirty-one".