22681039 has 2 divisors, whose sum is σ = 22681040. Its totient is φ = 22681038.

The previous prime is 22681031. The next prime is 22681049. The reversal of 22681039 is 93018622.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22681039 - 2³ = 22681031 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22681039.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22681031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11340519 + 11340520.

It is an arithmetic number, because the mean of its divisors is an integer number (11340520).

Almost surely, 2^22681039 is an apocalyptic number.

22681039 is a deficient number, since it is larger than the sum of its proper divisors (1).

22681039 is an equidigital number, since it uses as much as digits as its factorization.

22681039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 22681039 is about 4762.4614434135. The cubic root of 22681039 is about 283.0659612257.

The spelling of 22681039 in words is "twenty-two million, six hundred eighty-one thousand, thirty-nine".