23160521 has 2 divisors, whose sum is σ = 23160522. Its totient is φ = 23160520.

The previous prime is 23160499. The next prime is 23160551. The reversal of 23160521 is 12506132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22231225 + 929296 = 4715^2 + 964^2 .

It is a cyclic number.

It is not a de Polignac number, because 23160521 - 2¹⁴ = 23144137 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23160493 and 23160502.

It is not a weakly prime, because it can be changed into another prime (23160551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11580260 + 11580261.

It is an arithmetic number, because the mean of its divisors is an integer number (11580261).

Almost surely, 2^23160521 is an apocalyptic number.

It is an amenable number.

23160521 is a deficient number, since it is larger than the sum of its proper divisors (1).

23160521 is an equidigital number, since it uses as much as digits as its factorization.

23160521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 23160521 is about 4812.5378959547. The cubic root of 23160521 is about 285.0467595382.

Adding to 23160521 its reverse (12506132), we get a palindrome (35666653).

The spelling of 23160521 in words is "twenty-three million, one hundred sixty thousand, five hundred twenty-one".