22138037 has 2 divisors, whose sum is σ = 22138038. Its totient is φ = 22138036.

The previous prime is 22138031. The next prime is 22138043. The reversal of 22138037 is 73083122.

It is a balanced prime because it is at equal distance from previous prime (22138031) and next prime (22138043).

It can be written as a sum of positive squares in only one way, i.e., 15792676 + 6345361 = 3974^2 + 2519^2 .

It is a cyclic number.

It is not a de Polignac number, because 22138037 - 2⁸ = 22137781 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22137997 and 22138015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22138031) 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 as a sum of consecutive naturals, namely, 11069018 + 11069019.

It is an arithmetic number, because the mean of its divisors is an integer number (11069019).

Almost surely, 2^22138037 is an apocalyptic number.

It is an amenable number.

22138037 is a deficient number, since it is larger than the sum of its proper divisors (1).

22138037 is an equidigital number, since it uses as much as digits as its factorization.

22138037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 22138037 is about 4705.1075439356. The cubic root of 22138037 is about 280.7887496744.

The spelling of 22138037 in words is "twenty-two million, one hundred thirty-eight thousand, thirty-seven".