102159899 has 2 divisors, whose sum is σ = 102159900. Its totient is φ = 102159898.

The previous prime is 102159853. The next prime is 102159901. The reversal of 102159899 is 998951201.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102159899 - 2⁸ = 102159643 is a prime.

Together with 102159901, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (102152899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51079949 + 51079950.

It is an arithmetic number, because the mean of its divisors is an integer number (51079950).

Almost surely, 2^102159899 is an apocalyptic number.

102159899 is a deficient number, since it is larger than the sum of its proper divisors (1).

102159899 is an equidigital number, since it uses as much as digits as its factorization.

102159899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 44.

The square root of 102159899 is about 10107.4180184654. The cubic root of 102159899 is about 467.4768959194.

The spelling of 102159899 in words is "one hundred two million, one hundred fifty-nine thousand, eight hundred ninety-nine".