22451365 has 16 divisors (see below), whose sum is σ = 28298880. Its totient is φ = 17075520.

The previous prime is 22451353. The next prime is 22451371. The reversal of 22451365 is 56315422.

It is not a de Polignac number, because 22451365 - 2¹⁹ = 21927077 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8560 + ... + 10870.

It is an arithmetic number, because the mean of its divisors is an integer number (1768680).

Almost surely, 2^22451365 is an apocalyptic number.

It is an amenable number.

22451365 is a deficient number, since it is larger than the sum of its proper divisors (5847515).

22451365 is a wasteful number, since it uses less digits than its factorization.

22451365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2412.

The product of its digits is 7200, while the sum is 28.

The square root of 22451365 is about 4738.2871377746. The cubic root of 22451365 is about 282.1072517616.

Adding to 22451365 its reverse (56315422), we get a palindrome (78766787).

The spelling of 22451365 in words is "twenty-two million, four hundred fifty-one thousand, three hundred sixty-five".