23161316 has 12 divisors (see below), whose sum is σ = 41021232. Its totient is φ = 11440968.

The previous prime is 23161283. The next prime is 23161319. The reversal of 23161316 is 61316132.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 23161291 and 23161300.

It is not an unprimeable number, because it can be changed into a prime (23161319) 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, 34550 + ... + 35213.

It is an arithmetic number, because the mean of its divisors is an integer number (3418436).

Almost surely, 2^23161316 is an apocalyptic number.

It is an amenable number.

23161316 is a deficient number, since it is larger than the sum of its proper divisors (17859916).

23161316 is a wasteful number, since it uses less digits than its factorization.

23161316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69850 (or 69848 counting only the distinct ones).

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

The square root of 23161316 is about 4812.6204919981. The cubic root of 23161316 is about 285.0500209729.

Adding to 23161316 its reverse (61316132), we get a palindrome (84477448).

The spelling of 23161316 in words is "twenty-three million, one hundred sixty-one thousand, three hundred sixteen".