23572147 has 4 divisors (see below), whose sum is σ = 23690800. Its totient is φ = 23453496.

The previous prime is 23572111. The next prime is 23572177. The reversal of 23572147 is 74127532.

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 23572147 - 2¹⁵ = 23539379 is a prime.

It is a super-2 number, since 2×23572147² = 1111292228379218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23572177) 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, 59028 + ... + 59425.

It is an arithmetic number, because the mean of its divisors is an integer number (5922700).

Almost surely, 2^23572147 is an apocalyptic number.

23572147 is a deficient number, since it is larger than the sum of its proper divisors (118653).

23572147 is a wasteful number, since it uses less digits than its factorization.

23572147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118652.

The product of its digits is 11760, while the sum is 31.

The square root of 23572147 is about 4855.1155496033. The cubic root of 23572147 is about 286.7255406091.

Adding to 23572147 its reverse (74127532), we get a palindrome (97699679).

The spelling of 23572147 in words is "twenty-three million, five hundred seventy-two thousand, one hundred forty-seven".