122430739 has 2 divisors, whose sum is σ = 122430740. Its totient is φ = 122430738.

The previous prime is 122430733. The next prime is 122430769. The reversal of 122430739 is 937034221.

It is a weak prime.

It is an emirp because it is prime and its reverse (937034221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122430739 - 2³ = 122430731 is a prime.

It is a super-2 number, since 2×122430739² = 29978571704172242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 122430739.

It is not a weakly prime, because it can be changed into another prime (122430731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61215369 + 61215370.

It is an arithmetic number, because the mean of its divisors is an integer number (61215370).

Almost surely, 2^122430739 is an apocalyptic number.

122430739 is a deficient number, since it is larger than the sum of its proper divisors (1).

122430739 is an equidigital number, since it uses as much as digits as its factorization.

122430739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 122430739 is about 11064.8424751553. The cubic root of 122430739 is about 496.5505763436.

The spelling of 122430739 in words is "one hundred twenty-two million, four hundred thirty thousand, seven hundred thirty-nine".