23115406 has 4 divisors (see below), whose sum is σ = 34673112. Its totient is φ = 11557702.

The previous prime is 23115403. The next prime is 23115409. The reversal of 23115406 is 60451132.

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

It is an interprime number because it is at equal distance from previous prime (23115403) and next prime (23115409).

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 polite number, since it can be written as a sum of consecutive naturals, namely, 5778850 + ... + 5778853.

It is an arithmetic number, because the mean of its divisors is an integer number (8668278).

Almost surely, 2^23115406 is an apocalyptic number.

23115406 is a deficient number, since it is larger than the sum of its proper divisors (11557706).

23115406 is a wasteful number, since it uses less digits than its factorization.

23115406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11557705.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 23115406 is about 4807.8483753130. The cubic root of 23115406 is about 284.8615558225.

Adding to 23115406 its reverse (60451132), we get a palindrome (83566538).

The spelling of 23115406 in words is "twenty-three million, one hundred fifteen thousand, four hundred six".