23316161 has 4 divisors (see below), whose sum is σ = 25435824. Its totient is φ = 21196500.

The previous prime is 23316157. The next prime is 23316229. The reversal of 23316161 is 16161332.

It is a happy number.

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 23316161 - 2² = 23316157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23316101) 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, 1059815 + ... + 1059836.

It is an arithmetic number, because the mean of its divisors is an integer number (6358956).

Almost surely, 2^23316161 is an apocalyptic number.

It is an amenable number.

23316161 is a deficient number, since it is larger than the sum of its proper divisors (2119663).

23316161 is a wasteful number, since it uses less digits than its factorization.

23316161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2119662.

The product of its digits is 648, while the sum is 23.

The square root of 23316161 is about 4828.6810828631. The cubic root of 23316161 is about 285.6838446497.

Adding to 23316161 its reverse (16161332), we get a palindrome (39477493).

The spelling of 23316161 in words is "twenty-three million, three hundred sixteen thousand, one hundred sixty-one".