23045147 has 4 divisors (see below), whose sum is σ = 23072016. Its totient is φ = 23018280.

The previous prime is 23045137. The next prime is 23045159. The reversal of 23045147 is 74154032.

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

It is a cyclic number.

It is not a de Polignac number, because 23045147 - 2⁴ = 23045131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23045137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12104 + ... + 13877.

It is an arithmetic number, because the mean of its divisors is an integer number (5768004).

Almost surely, 2^23045147 is an apocalyptic number.

23045147 is a deficient number, since it is larger than the sum of its proper divisors (26869).

23045147 is an equidigital number, since it uses as much as digits as its factorization.

23045147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26868.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 23045147 is about 4800.5361158937. The cubic root of 23045147 is about 284.5726518207.

Adding to 23045147 its reverse (74154032), we get a palindrome (97199179).

The spelling of 23045147 in words is "twenty-three million, forty-five thousand, one hundred forty-seven".