122670019 has 2 divisors, whose sum is σ = 122670020. Its totient is φ = 122670018.

The previous prime is 122669993. The next prime is 122670049. The reversal of 122670019 is 910076221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122670019 - 2⁷ = 122669891 is a prime.

It is a super-2 number, since 2×122670019² = 30095867122920722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122670049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61335009 + 61335010.

It is an arithmetic number, because the mean of its divisors is an integer number (61335010).

Almost surely, 2^122670019 is an apocalyptic number.

122670019 is a deficient number, since it is larger than the sum of its proper divisors (1).

122670019 is an equidigital number, since it uses as much as digits as its factorization.

122670019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 122670019 is about 11075.6498229224. The cubic root of 122670019 is about 496.8738538217.

The spelling of 122670019 in words is "one hundred twenty-two million, six hundred seventy thousand, nineteen".