122739800039 has 2 divisors, whose sum is σ = 122739800040. Its totient is φ = 122739800038.

The previous prime is 122739800017. The next prime is 122739800047. The reversal of 122739800039 is 930008937221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122739800039 - 2¹⁶ = 122739734503 is a prime.

It is a super-2 number, since 2×122739800039² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122739800069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61369900019 + 61369900020.

It is an arithmetic number, because the mean of its divisors is an integer number (61369900020).

Almost surely, 2^122739800039 is an apocalyptic number.

122739800039 is a deficient number, since it is larger than the sum of its proper divisors (1).

122739800039 is an equidigital number, since it uses as much as digits as its factorization.

122739800039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 44.

The spelling of 122739800039 in words is "one hundred twenty-two billion, seven hundred thirty-nine million, eight hundred thousand, thirty-nine".