23115407 has 12 divisors (see below), whose sum is σ = 27818280. Its totient is φ = 19128816.

The previous prime is 23115403. The next prime is 23115409. The reversal of 23115407 is 70451132.

It is not a de Polignac number, because 23115407 - 2² = 23115403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23115403) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 6713 + ... + 9554.

It is an arithmetic number, because the mean of its divisors is an integer number (2318190).

Almost surely, 2^23115407 is an apocalyptic number.

23115407 is a deficient number, since it is larger than the sum of its proper divisors (4702873).

23115407 is a wasteful number, since it uses less digits than its factorization.

23115407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16310 (or 16303 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 23115407 is about 4807.8484793096. The cubic root of 23115407 is about 284.8615599303.

Adding to 23115407 its reverse (70451132), we get a palindrome (93566539).

The spelling of 23115407 in words is "twenty-three million, one hundred fifteen thousand, four hundred seven".