23195957 has 4 divisors (see below), whose sum is σ = 23689536. Its totient is φ = 22702380.

The previous prime is 23195951. The next prime is 23195959. The reversal of 23195957 is 75959132.

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 a de Polignac number, because none of the positive numbers 2^k-23195957 is a prime.

It is a super-2 number, since 2×23195957² = 1076104842291698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23195951) 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, 246719 + ... + 246812.

It is an arithmetic number, because the mean of its divisors is an integer number (5922384).

Almost surely, 2^23195957 is an apocalyptic number.

It is an amenable number.

23195957 is a deficient number, since it is larger than the sum of its proper divisors (493579).

23195957 is an equidigital number, since it uses as much as digits as its factorization.

23195957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493578.

The product of its digits is 85050, while the sum is 41.

The square root of 23195957 is about 4816.2181221369. The cubic root of 23195957 is about 285.1920609590.

The spelling of 23195957 in words is "twenty-three million, one hundred ninety-five thousand, nine hundred fifty-seven".