923139 has 12 divisors (see below), whose sum is σ = 1524016. Its totient is φ = 527472.

The previous prime is 923137. The next prime is 923141. The reversal of 923139 is 931329.

It is an interprime number because it is at equal distance from previous prime (923137) and next prime (923141).

It is not a de Polignac number, because 923139 - 2¹ = 923137 is a prime.

It is a super-2 number, since 2×923139² = 1704371226642, which contains 22 as substring.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 923139.

It is not an unprimeable number, because it can be changed into a prime (923137) 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, 7264 + ... + 7389.

2⁹²³¹³⁹ is an apocalyptic number.

923139 is a deficient number, since it is larger than the sum of its proper divisors (600877).

923139 is a wasteful number, since it uses less digits than its factorization.

923139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14666 (or 14663 counting only the distinct ones).

The product of its digits is 1458, while the sum is 27.

The square root of 923139 is about 960.8012281424. The cubic root of 923139 is about 97.3693714156.

The spelling of 923139 in words is "nine hundred twenty-three thousand, one hundred thirty-nine".