106665073 has 2 divisors, whose sum is σ = 106665074. Its totient is φ = 106665072.

The previous prime is 106665019. The next prime is 106665113. The reversal of 106665073 is 370566601.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75829264 + 30835809 = 8708^2 + 5553^2 .

It is an emirp because it is prime and its reverse (370566601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 106665073 - 2⁹ = 106664561 is a prime.

It is a super-2 number, since 2×106665073² = 22754875596190658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (106665473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53332536 + 53332537.

It is an arithmetic number, because the mean of its divisors is an integer number (53332537).

Almost surely, 2^106665073 is an apocalyptic number.

It is an amenable number.

106665073 is a deficient number, since it is larger than the sum of its proper divisors (1).

106665073 is an equidigital number, since it uses as much as digits as its factorization.

106665073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 106665073 is about 10327.8784365425. The cubic root of 106665073 is about 474.2500787110.

The spelling of 106665073 in words is "one hundred six million, six hundred sixty-five thousand, seventy-three".