22113529 has 2 divisors, whose sum is σ = 22113530. Its totient is φ = 22113528.

The previous prime is 22113521. The next prime is 22113541. The reversal of 22113529 is 92531122.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21344400 + 769129 = 4620^2 + 877^2 .

It is a cyclic number.

It is not a de Polignac number, because 22113529 - 2³ = 22113521 is a prime.

It is not a weakly prime, because it can be changed into another prime (22113521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11056764 + 11056765.

It is an arithmetic number, because the mean of its divisors is an integer number (11056765).

Almost surely, 2^22113529 is an apocalyptic number.

It is an amenable number.

22113529 is a deficient number, since it is larger than the sum of its proper divisors (1).

22113529 is an equidigital number, since it uses as much as digits as its factorization.

22113529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 25.

The square root of 22113529 is about 4702.5024189255. The cubic root of 22113529 is about 280.6850953220.

The spelling of 22113529 in words is "twenty-two million, one hundred thirteen thousand, five hundred twenty-nine".