122648959 has 2 divisors, whose sum is σ = 122648960. Its totient is φ = 122648958.

The previous prime is 122648947. The next prime is 122648983. The reversal of 122648959 is 959846221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122648959 - 2⁹ = 122648447 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122648159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61324479 + 61324480.

It is an arithmetic number, because the mean of its divisors is an integer number (61324480).

Almost surely, 2^122648959 is an apocalyptic number.

122648959 is a deficient number, since it is larger than the sum of its proper divisors (1).

122648959 is an equidigital number, since it uses as much as digits as its factorization.

122648959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 46.

The square root of 122648959 is about 11074.6990478297. The cubic root of 122648959 is about 496.8454177449.

The spelling of 122648959 in words is "one hundred twenty-two million, six hundred forty-eight thousand, nine hundred fifty-nine".