22315245 has 16 divisors (see below), whose sum is σ = 35968320. Its totient is φ = 11813504.

The previous prime is 22315231. The next prime is 22315247. The reversal of 22315245 is 54251322.

It is a cyclic number.

It is not a de Polignac number, because 22315245 - 2⁵ = 22315213 is a prime.

It is a super-3 number, since 3×22315245³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22315247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3375 + ... + 7484.

It is an arithmetic number, because the mean of its divisors is an integer number (2248020).

Almost surely, 2^22315245 is an apocalyptic number.

It is an amenable number.

22315245 is a deficient number, since it is larger than the sum of its proper divisors (13653075).

22315245 is a wasteful number, since it uses less digits than its factorization.

22315245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11004.

The product of its digits is 2400, while the sum is 24.

The square root of 22315245 is about 4723.9014595988. The cubic root of 22315245 is about 281.5359679019.

Adding to 22315245 its reverse (54251322), we get a palindrome (76566567).

The spelling of 22315245 in words is "twenty-two million, three hundred fifteen thousand, two hundred forty-five".