22499315 has 4 divisors (see below), whose sum is σ = 26999184. Its totient is φ = 17999448.

The previous prime is 22499311. The next prime is 22499329. The reversal of 22499315 is 51399422.

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 22499315 - 2² = 22499311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22499311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2249927 + ... + 2249936.

It is an arithmetic number, because the mean of its divisors is an integer number (6749796).

Almost surely, 2^22499315 is an apocalyptic number.

22499315 is a deficient number, since it is larger than the sum of its proper divisors (4499869).

22499315 is an equidigital number, since it uses as much as digits as its factorization.

22499315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4499868.

The product of its digits is 19440, while the sum is 35.

The square root of 22499315 is about 4743.3442843631. The cubic root of 22499315 is about 282.3079437033.

The spelling of 22499315 in words is "twenty-two million, four hundred ninety-nine thousand, three hundred fifteen".