22637145 has 8 divisors (see below), whose sum is σ = 36219456. Its totient is φ = 12073136.

The previous prime is 22637141. The next prime is 22637243. The reversal of 22637145 is 54173622.

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 22637145 - 2² = 22637141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22637141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 754557 + ... + 754586.

It is an arithmetic number, because the mean of its divisors is an integer number (4527432).

Almost surely, 2^22637145 is an apocalyptic number.

It is an amenable number.

22637145 is a deficient number, since it is larger than the sum of its proper divisors (13582311).

22637145 is a wasteful number, since it uses less digits than its factorization.

22637145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1509151.

The product of its digits is 10080, while the sum is 30.

The square root of 22637145 is about 4757.8508803871. The cubic root of 22637145 is about 282.8832400091.

The spelling of 22637145 in words is "twenty-two million, six hundred thirty-seven thousand, one hundred forty-five".