106665019 has 2 divisors, whose sum is σ = 106665020. Its totient is φ = 106665018.

The previous prime is 106664959. The next prime is 106665073. The reversal of 106665019 is 910566601.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 106665019 - 2²³ = 98276411 is a prime.

It is a super-2 number, since 2×106665019² = 22754852556540722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (106665619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53332509 + 53332510.

It is an arithmetic number, because the mean of its divisors is an integer number (53332510).

Almost surely, 2^106665019 is an apocalyptic number.

106665019 is a deficient number, since it is larger than the sum of its proper divisors (1).

106665019 is an equidigital number, since it uses as much as digits as its factorization.

106665019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 106665019 is about 10327.8758222589. The cubic root of 106665019 is about 474.2499986800.

The spelling of 106665019 in words is "one hundred six million, six hundred sixty-five thousand, nineteen".