22690137 has 4 divisors (see below), whose sum is σ = 30253520. Its totient is φ = 15126756.

The previous prime is 22690067. The next prime is 22690141. The reversal of 22690137 is 73109622.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 22690137 - 2¹⁴ = 22673753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22690177) 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 3 ways as a sum of consecutive naturals, for example, 3781687 + ... + 3781692.

It is an arithmetic number, because the mean of its divisors is an integer number (7563380).

Almost surely, 2^22690137 is an apocalyptic number.

It is an amenable number.

22690137 is a deficient number, since it is larger than the sum of its proper divisors (7563383).

22690137 is an equidigital number, since it uses as much as digits as its factorization.

22690137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7563382.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 22690137 is about 4763.4165259822. The cubic root of 22690137 is about 283.1038047279.

Adding to 22690137 its reverse (73109622), we get a palindrome (95799759).

The spelling of 22690137 in words is "twenty-two million, six hundred ninety thousand, one hundred thirty-seven".