923161 has 4 divisors (see below), whose sum is σ = 928000. Its totient is φ = 918324.

The previous prime is 923147. The next prime is 923171. The reversal of 923161 is 161329.

923161 = T₇₈₃ + T₇₈₄ + T₇₈₅.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 923161 - 2⁵ = 923129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (923141) 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, 2121 + ... + 2518.

It is an arithmetic number, because the mean of its divisors is an integer number (232000).

2⁹²³¹⁶¹ is an apocalyptic number.

923161 is the 785-th centered triangular number.

It is an amenable number.

923161 is a deficient number, since it is larger than the sum of its proper divisors (4839).

923161 is a wasteful number, since it uses less digits than its factorization.

923161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4838.

The product of its digits is 324, while the sum is 22.

The square root of 923161 is about 960.8126768523. The cubic root of 923161 is about 97.3701449030.

The spelling of 923161 in words is "nine hundred twenty-three thousand, one hundred sixty-one".