122648459 has 2 divisors, whose sum is σ = 122648460. Its totient is φ = 122648458.

The previous prime is 122648447. The next prime is 122648479. The reversal of 122648459 is 954846221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122648459 - 2⁸ = 122648203 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (122648479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61324229 + 61324230.

It is an arithmetic number, because the mean of its divisors is an integer number (61324230).

Almost surely, 2^122648459 is an apocalyptic number.

122648459 is a deficient number, since it is larger than the sum of its proper divisors (1).

122648459 is an equidigital number, since it uses as much as digits as its factorization.

122648459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 138240, while the sum is 41.

The square root of 122648459 is about 11074.6764738298. The cubic root of 122648459 is about 496.8447425848.

The spelling of 122648459 in words is "one hundred twenty-two million, six hundred forty-eight thousand, four hundred fifty-nine".