23109047 has 8 divisors (see below), whose sum is σ = 25084416. Its totient is φ = 21161952.

The previous prime is 23109041. The next prime is 23109049. The reversal of 23109047 is 74090132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23109047 - 2⁸ = 23108791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23109041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5348 + ... + 8649.

It is an arithmetic number, because the mean of its divisors is an integer number (3135552).

Almost surely, 2^23109047 is an apocalyptic number.

23109047 is a deficient number, since it is larger than the sum of its proper divisors (1975369).

23109047 is a wasteful number, since it uses less digits than its factorization.

23109047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14137.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 23109047 is about 4807.1870152928. The cubic root of 23109047 is about 284.8354318201.

Adding to 23109047 its reverse (74090132), we get a palindrome (97199179).

The spelling of 23109047 in words is "twenty-three million, one hundred nine thousand, forty-seven".