122238539 has 2 divisors, whose sum is σ = 122238540. Its totient is φ = 122238538.

The previous prime is 122238521. The next prime is 122238593. The reversal of 122238539 is 935832221.

Together with next prime (122238593) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122238539 - 2⁸ = 122238283 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 122238499 and 122238508.

It is not a weakly prime, because it can be changed into another prime (122238439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61119269 + 61119270.

It is an arithmetic number, because the mean of its divisors is an integer number (61119270).

Almost surely, 2^122238539 is an apocalyptic number.

122238539 is a deficient number, since it is larger than the sum of its proper divisors (1).

122238539 is an equidigital number, since it uses as much as digits as its factorization.

122238539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 35.

The square root of 122238539 is about 11056.1538972646. The cubic root of 122238539 is about 496.2906007680.

The spelling of 122238539 in words is "one hundred twenty-two million, two hundred thirty-eight thousand, five hundred thirty-nine".