23095981 has 4 divisors (see below), whose sum is σ = 23138752. Its totient is φ = 23053212.

The previous prime is 23095939. The next prime is 23095987. The reversal of 23095981 is 18959032.

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 23095981 - 2¹¹ = 23093933 is a prime.

It is a super-2 number, since 2×23095981² = 1066848676704722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23095981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23095987) 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, 20565 + ... + 21658.

It is an arithmetic number, because the mean of its divisors is an integer number (5784688).

Almost surely, 2^23095981 is an apocalyptic number.

It is an amenable number.

23095981 is a deficient number, since it is larger than the sum of its proper divisors (42771).

23095981 is an equidigital number, since it uses as much as digits as its factorization.

23095981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42770.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 23095981 is about 4805.8278163080. The cubic root of 23095981 is about 284.7817391200.

The spelling of 23095981 in words is "twenty-three million, ninety-five thousand, nine hundred eighty-one".