22513397 has 8 divisors (see below), whose sum is σ = 23045280. Its totient is φ = 21986640.

The previous prime is 22513391. The next prime is 22513399. The reversal of 22513397 is 79331522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22513397 - 2¹² = 22509301 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 (22513391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8447 + ... + 10787.

It is an arithmetic number, because the mean of its divisors is an integer number (2880660).

Almost surely, 2^22513397 is an apocalyptic number.

It is an amenable number.

22513397 is a deficient number, since it is larger than the sum of its proper divisors (531883).

22513397 is a wasteful number, since it uses less digits than its factorization.

22513397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2563.

The product of its digits is 11340, while the sum is 32.

The square root of 22513397 is about 4744.8284478999. The cubic root of 22513397 is about 282.3668289236.

The spelling of 22513397 in words is "twenty-two million, five hundred thirteen thousand, three hundred ninety-seven".