22961539 has 2 divisors, whose sum is σ = 22961540. Its totient is φ = 22961538.

The previous prime is 22961501. The next prime is 22961569. The reversal of 22961539 is 93516922.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22961539 - 2¹¹ = 22959491 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22961498 and 22961507.

It is not a weakly prime, because it can be changed into another prime (22961569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11480769 + 11480770.

It is an arithmetic number, because the mean of its divisors is an integer number (11480770).

Almost surely, 2^22961539 is an apocalyptic number.

22961539 is a deficient number, since it is larger than the sum of its proper divisors (1).

22961539 is an equidigital number, since it uses as much as digits as its factorization.

22961539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29160, while the sum is 37.

The square root of 22961539 is about 4791.8200091406. The cubic root of 22961539 is about 284.2280907496.

The spelling of 22961539 in words is "twenty-two million, nine hundred sixty-one thousand, five hundred thirty-nine".