102298939 has 2 divisors, whose sum is σ = 102298940. Its totient is φ = 102298938.

The previous prime is 102298909. The next prime is 102298943. The reversal of 102298939 is 939892201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102298939 - 2⁷ = 102298811 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102298895 and 102298904.

It is not a weakly prime, because it can be changed into another prime (102298909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51149469 + 51149470.

It is an arithmetic number, because the mean of its divisors is an integer number (51149470).

Almost surely, 2^102298939 is an apocalyptic number.

102298939 is a deficient number, since it is larger than the sum of its proper divisors (1).

102298939 is an equidigital number, since it uses as much as digits as its factorization.

102298939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 102298939 is about 10114.2937964052. The cubic root of 102298939 is about 467.6888790394.

The spelling of 102298939 in words is "one hundred two million, two hundred ninety-eight thousand, nine hundred thirty-nine".