122440859 has 2 divisors, whose sum is σ = 122440860. Its totient is φ = 122440858.

The previous prime is 122440837. The next prime is 122440897. The reversal of 122440859 is 958044221.

It is a weak prime.

It is an emirp because it is prime and its reverse (958044221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122440859 - 2²⁰ = 121392283 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (122440159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61220429 + 61220430.

It is an arithmetic number, because the mean of its divisors is an integer number (61220430).

Almost surely, 2^122440859 is an apocalyptic number.

122440859 is a deficient number, since it is larger than the sum of its proper divisors (1).

122440859 is an equidigital number, since it uses as much as digits as its factorization.

122440859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 122440859 is about 11065.2997700017. The cubic root of 122440859 is about 496.5642574214.

The spelling of 122440859 in words is "one hundred twenty-two million, four hundred forty thousand, eight hundred fifty-nine".