23192491 has 4 divisors (see below), whose sum is σ = 26505712. Its totient is φ = 19879272.

The previous prime is 23192473. The next prime is 23192501. The reversal of 23192491 is 19429132.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 23192491 - 2¹¹ = 23190443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23192461) 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, 1656600 + ... + 1656613.

It is an arithmetic number, because the mean of its divisors is an integer number (6626428).

Almost surely, 2^23192491 is an apocalyptic number.

23192491 is a deficient number, since it is larger than the sum of its proper divisors (3313221).

23192491 is an equidigital number, since it uses as much as digits as its factorization.

23192491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3313220.

The product of its digits is 3888, while the sum is 31.

The square root of 23192491 is about 4815.8582827986. The cubic root of 23192491 is about 285.1778555392.

The spelling of 23192491 in words is "twenty-three million, one hundred ninety-two thousand, four hundred ninety-one".