22801237 has 2 divisors, whose sum is σ = 22801238. Its totient is φ = 22801236.

The previous prime is 22801201. The next prime is 22801241. The reversal of 22801237 is 73210822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16695396 + 6105841 = 4086^2 + 2471^2 .

It is a cyclic number.

It is not a de Polignac number, because 22801237 - 2⁷ = 22801109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22801277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11400618 + 11400619.

It is an arithmetic number, because the mean of its divisors is an integer number (11400619).

Almost surely, 2^22801237 is an apocalyptic number.

It is an amenable number.

22801237 is a deficient number, since it is larger than the sum of its proper divisors (1).

22801237 is an equidigital number, since it uses as much as digits as its factorization.

22801237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 22801237 is about 4775.0640833396. The cubic root of 22801237 is about 283.5651158351.

The spelling of 22801237 in words is "twenty-two million, eight hundred one thousand, two hundred thirty-seven".