23315142 has 16 divisors (see below), whose sum is σ = 47768112. Its totient is φ = 7582080.

The previous prime is 23315137. The next prime is 23315161. The reversal of 23315142 is 24151332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47143 + ... + 47634.

It is an arithmetic number, because the mean of its divisors is an integer number (2985507).

Almost surely, 2^23315142 is an apocalyptic number.

23315142 is an abundant number, since it is smaller than the sum of its proper divisors (24452970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23315142 is a wasteful number, since it uses less digits than its factorization.

23315142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94823.

The product of its digits is 720, while the sum is 21.

The square root of 23315142 is about 4828.5755663549. The cubic root of 23315142 is about 285.6796827856.

Adding to 23315142 its reverse (24151332), we get a palindrome (47466474).

The spelling of 23315142 in words is "twenty-three million, three hundred fifteen thousand, one hundred forty-two".