22990147 has 4 divisors (see below), whose sum is σ = 23041800. Its totient is φ = 22938496.

The previous prime is 22990139. The next prime is 22990151. The reversal of 22990147 is 74109922.

It is a happy number.

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 22990147 - 2³ = 22990139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22990157) 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, 25153 + ... + 26050.

It is an arithmetic number, because the mean of its divisors is an integer number (5760450).

Almost surely, 2^22990147 is an apocalyptic number.

22990147 is a deficient number, since it is larger than the sum of its proper divisors (51653).

22990147 is an equidigital number, since it uses as much as digits as its factorization.

22990147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51652.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 22990147 is about 4794.8041670125. The cubic root of 22990147 is about 284.3460825887.

The spelling of 22990147 in words is "twenty-two million, nine hundred ninety thousand, one hundred forty-seven".