22125387 has 8 divisors (see below), whose sum is σ = 29616336. Its totient is φ = 14692352.

The previous prime is 22125377. The next prime is 22125403. The reversal of 22125387 is 78352122.

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 22125387 - 2¹⁰ = 22124363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22125317) 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, 13578 + ... + 15119.

It is an arithmetic number, because the mean of its divisors is an integer number (3702042).

Almost surely, 2^22125387 is an apocalyptic number.

22125387 is a deficient number, since it is larger than the sum of its proper divisors (7490949).

22125387 is a wasteful number, since it uses less digits than its factorization.

22125387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28957.

The product of its digits is 6720, while the sum is 30.

The square root of 22125387 is about 4703.7630680127. The cubic root of 22125387 is about 280.7352572103.

The spelling of 22125387 in words is "twenty-two million, one hundred twenty-five thousand, three hundred eighty-seven".