122415019 has 2 divisors, whose sum is σ = 122415020. Its totient is φ = 122415018.

The previous prime is 122414989. The next prime is 122415031. The reversal of 122415019 is 910514221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122415019 - 2⁵ = 122414987 is a prime.

It is a super-2 number, since 2×122415019² = 29970873753540722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122414984 and 122415002.

It is not a weakly prime, because it can be changed into another prime (122415089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61207509 + 61207510.

It is an arithmetic number, because the mean of its divisors is an integer number (61207510).

Almost surely, 2^122415019 is an apocalyptic number.

122415019 is a deficient number, since it is larger than the sum of its proper divisors (1).

122415019 is an equidigital number, since it uses as much as digits as its factorization.

122415019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 122415019 is about 11064.1320942946. The cubic root of 122415019 is about 496.5293232138.

The spelling of 122415019 in words is "one hundred twenty-two million, four hundred fifteen thousand, nineteen".