22722951 has 4 divisors (see below), whose sum is σ = 30297272. Its totient is φ = 15148632.

The previous prime is 22722923. The next prime is 22722961. The reversal of 22722951 is 15922722.

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

It is not a de Polignac number, because 22722951 - 2⁷ = 22722823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22722961) 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, 3787156 + ... + 3787161.

It is an arithmetic number, because the mean of its divisors is an integer number (7574318).

Almost surely, 2^22722951 is an apocalyptic number.

22722951 is a deficient number, since it is larger than the sum of its proper divisors (7574321).

22722951 is an equidigital number, since it uses as much as digits as its factorization.

22722951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7574320.

The product of its digits is 5040, while the sum is 30.

The square root of 22722951 is about 4766.8596580978. The cubic root of 22722951 is about 283.2402119198.

The spelling of 22722951 in words is "twenty-two million, seven hundred twenty-two thousand, nine hundred fifty-one".