23133115 has 4 divisors (see below), whose sum is σ = 27759744. Its totient is φ = 18506488.

The previous prime is 23133109. The next prime is 23133139. The reversal of 23133115 is 51133132.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23133115 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23133092 and 23133101.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2313307 + ... + 2313316.

It is an arithmetic number, because the mean of its divisors is an integer number (6939936).

Almost surely, 2^23133115 is an apocalyptic number.

23133115 is a deficient number, since it is larger than the sum of its proper divisors (4626629).

23133115 is an equidigital number, since it uses as much as digits as its factorization.

23133115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4626628.

The product of its digits is 270, while the sum is 19.

The square root of 23133115 is about 4809.6896989307. The cubic root of 23133115 is about 284.9342825802.

Adding to 23133115 its reverse (51133132), we get a palindrome (74266247).

The spelling of 23133115 in words is "twenty-three million, one hundred thirty-three thousand, one hundred fifteen".