23159641 has 4 divisors (see below), whose sum is σ = 23174452. Its totient is φ = 23144832.

The previous prime is 23159639. The next prime is 23159657. The reversal of 23159641 is 14695132.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13104400 + 10055241 = 3620^2 + 3171^2 .

It is a cyclic number.

It is not a de Polignac number, because 23159641 - 2¹ = 23159639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23159611) 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, 4740 + ... + 8293.

It is an arithmetic number, because the mean of its divisors is an integer number (5793613).

Almost surely, 2^23159641 is an apocalyptic number.

It is an amenable number.

23159641 is a deficient number, since it is larger than the sum of its proper divisors (14811).

23159641 is a wasteful number, since it uses less digits than its factorization.

23159641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14810.

The product of its digits is 6480, while the sum is 31.

The square root of 23159641 is about 4812.4464672347. The cubic root of 23159641 is about 285.0431493096.

The spelling of 23159641 in words is "twenty-three million, one hundred fifty-nine thousand, six hundred forty-one".