23513163 has 4 divisors (see below), whose sum is σ = 31350888. Its totient is φ = 15675440.

The previous prime is 23513137. The next prime is 23513201. The reversal of 23513163 is 36131532.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 23513163 - 2¹⁴ = 23496779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23513123) 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, 3918858 + ... + 3918863.

It is an arithmetic number, because the mean of its divisors is an integer number (7837722).

Almost surely, 2^23513163 is an apocalyptic number.

23513163 is a deficient number, since it is larger than the sum of its proper divisors (7837725).

23513163 is an equidigital number, since it uses as much as digits as its factorization.

23513163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7837724.

The product of its digits is 1620, while the sum is 24.

The square root of 23513163 is about 4849.0373271403. The cubic root of 23513163 is about 286.4861854460.

Adding to 23513163 its reverse (36131532), we get a palindrome (59644695).

The spelling of 23513163 in words is "twenty-three million, five hundred thirteen thousand, one hundred sixty-three".