23116155 has 16 divisors (see below), whose sum is σ = 37847040. Its totient is φ = 12041568.

The previous prime is 23116123. The next prime is 23116193. The reversal of 23116155 is 55161132.

It is not a de Polignac number, because 23116155 - 2⁵ = 23116123 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17275 + ... + 18564.

It is an arithmetic number, because the mean of its divisors is an integer number (2365440).

Almost surely, 2^23116155 is an apocalyptic number.

23116155 is a deficient number, since it is larger than the sum of its proper divisors (14730885).

23116155 is a wasteful number, since it uses less digits than its factorization.

23116155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35890.

The product of its digits is 900, while the sum is 24.

The square root of 23116155 is about 4807.9262681535. The cubic root of 23116155 is about 284.8646325440.

Adding to 23116155 its reverse (55161132), we get a palindrome (78277287).

The spelling of 23116155 in words is "twenty-three million, one hundred sixteen thousand, one hundred fifty-five".