122259539 has 2 divisors, whose sum is σ = 122259540. Its totient is φ = 122259538.

The previous prime is 122259503. The next prime is 122259589. The reversal of 122259539 is 935952221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122259539 - 2²⁴ = 105482323 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (122259589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61129769 + 61129770.

It is an arithmetic number, because the mean of its divisors is an integer number (61129770).

Almost surely, 2^122259539 is an apocalyptic number.

122259539 is a deficient number, since it is larger than the sum of its proper divisors (1).

122259539 is an equidigital number, since it uses as much as digits as its factorization.

122259539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48600, while the sum is 38.

The square root of 122259539 is about 11057.1035538246. The cubic root of 122259539 is about 496.3190192628.

The spelling of 122259539 in words is "one hundred twenty-two million, two hundred fifty-nine thousand, five hundred thirty-nine".