102268979 has 2 divisors, whose sum is σ = 102268980. Its totient is φ = 102268978.

The previous prime is 102268967. The next prime is 102269003. The reversal of 102268979 is 979862201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102268979 - 2¹⁶ = 102203443 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (102268919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51134489 + 51134490.

It is an arithmetic number, because the mean of its divisors is an integer number (51134490).

Almost surely, 2^102268979 is an apocalyptic number.

102268979 is a deficient number, since it is larger than the sum of its proper divisors (1).

102268979 is an equidigital number, since it uses as much as digits as its factorization.

102268979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 102268979 is about 10112.8126156871. The cubic root of 102268979 is about 467.6432176765.

The spelling of 102268979 in words is "one hundred two million, two hundred sixty-eight thousand, nine hundred seventy-nine".