22137013 has 4 divisors (see below), whose sum is σ = 22403808. Its totient is φ = 21870220.

The previous prime is 22136981. The next prime is 22137023. The reversal of 22137013 is 31073122.

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 a cyclic number.

It is not a de Polignac number, because 22137013 - 2⁵ = 22136981 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 (22137023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133273 + ... + 133438.

It is an arithmetic number, because the mean of its divisors is an integer number (5600952).

Almost surely, 2^22137013 is an apocalyptic number.

It is an amenable number.

22137013 is a deficient number, since it is larger than the sum of its proper divisors (266795).

22137013 is an equidigital number, since it uses as much as digits as its factorization.

22137013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266794.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 22137013 is about 4704.9987247607. The cubic root of 22137013 is about 280.7844202915.

The spelling of 22137013 in words is "twenty-two million, one hundred thirty-seven thousand, thirteen".