102246689 has 2 divisors, whose sum is σ = 102246690. Its totient is φ = 102246688.

The previous prime is 102246629. The next prime is 102246701. The reversal of 102246689 is 986642201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80856064 + 21390625 = 8992^2 + 4625^2 .

It is a cyclic number.

It is not a de Polignac number, because 102246689 - 2⁸ = 102246433 is a prime.

It is a super-2 number, since 2×102246689² = 20908770822925442, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (102246629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51123344 + 51123345.

It is an arithmetic number, because the mean of its divisors is an integer number (51123345).

Almost surely, 2^102246689 is an apocalyptic number.

It is an amenable number.

102246689 is a deficient number, since it is larger than the sum of its proper divisors (1).

102246689 is an equidigital number, since it uses as much as digits as its factorization.

102246689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 102246689 is about 10111.7104883397. The cubic root of 102246689 is about 467.6092402026.

The spelling of 102246689 in words is "one hundred two million, two hundred forty-six thousand, six hundred eighty-nine".