23109475 has 12 divisors (see below), whose sum is σ = 29020960. Its totient is φ = 18252000.

The previous prime is 23109421. The next prime is 23109481. The reversal of 23109475 is 57490132.

It is not a de Polignac number, because 23109475 - 2¹⁵ = 23076707 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

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 11 ways as a sum of consecutive naturals, for example, 3876 + ... + 7825.

Almost surely, 2^23109475 is an apocalyptic number.

23109475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

23109475 is a deficient number, since it is larger than the sum of its proper divisors (5911485).

23109475 is a wasteful number, since it uses less digits than its factorization.

23109475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11790 (or 11785 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 23109475 is about 4807.2315317655. The cubic root of 23109475 is about 284.8371902773.

The spelling of 23109475 in words is "twenty-three million, one hundred nine thousand, four hundred seventy-five".