23115115 has 32 divisors (see below), whose sum is σ = 31104000. Its totient is φ = 16410240.

The previous prime is 23115109. The next prime is 23115133. The reversal of 23115115 is 51151132.

It is not a de Polignac number, because 23115115 - 2¹¹ = 23113067 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 23115092 and 23115101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 155061 + ... + 155209.

It is an arithmetic number, because the mean of its divisors is an integer number (972000).

Almost surely, 2^23115115 is an apocalyptic number.

23115115 is a deficient number, since it is larger than the sum of its proper divisors (7988885).

23115115 is a wasteful number, since it uses less digits than its factorization.

23115115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267.

The product of its digits is 150, while the sum is 19.

The square root of 23115115 is about 4807.8181122002. The cubic root of 23115115 is about 284.8603604428.

Adding to 23115115 its reverse (51151132), we get a palindrome (74266247).

The spelling of 23115115 in words is "twenty-three million, one hundred fifteen thousand, one hundred fifteen".