22473147 has 4 divisors (see below), whose sum is σ = 29964200. Its totient is φ = 14982096.

The previous prime is 22473131. The next prime is 22473149. The reversal of 22473147 is 74137422.

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

It is not a de Polignac number, because 22473147 - 2⁴ = 22473131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22473149) 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, 3745522 + ... + 3745527.

It is an arithmetic number, because the mean of its divisors is an integer number (7491050).

Almost surely, 2^22473147 is an apocalyptic number.

22473147 is a deficient number, since it is larger than the sum of its proper divisors (7491053).

22473147 is an equidigital number, since it uses as much as digits as its factorization.

22473147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7491052.

The product of its digits is 9408, while the sum is 30.

The square root of 22473147 is about 4740.5850904714. The cubic root of 22473147 is about 282.1984544422.

The spelling of 22473147 in words is "twenty-two million, four hundred seventy-three thousand, one hundred forty-seven".