23572249 has 4 divisors (see below), whose sum is σ = 23856336. Its totient is φ = 23288164.

The previous prime is 23572243. The next prime is 23572279. The reversal of 23572249 is 94227532.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23572249 - 2¹¹ = 23570201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23572243) 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, 141919 + ... + 142084.

It is an arithmetic number, because the mean of its divisors is an integer number (5964084).

Almost surely, 2^23572249 is an apocalyptic number.

It is an amenable number.

23572249 is a deficient number, since it is larger than the sum of its proper divisors (284087).

23572249 is an equidigital number, since it uses as much as digits as its factorization.

23572249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284086.

The product of its digits is 30240, while the sum is 34.

The square root of 23572249 is about 4855.1260539764. The cubic root of 23572249 is about 286.7259541758.

The spelling of 23572249 in words is "twenty-three million, five hundred seventy-two thousand, two hundred forty-nine".