102999539 has 2 divisors, whose sum is σ = 102999540. Its totient is φ = 102999538.

The previous prime is 102999521. The next prime is 102999541. The reversal of 102999539 is 935999201.

It is a strong prime.

It is an emirp because it is prime and its reverse (935999201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102999539 - 2²⁰ = 101950963 is a prime.

Together with 102999541, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 102999493 and 102999502.

It is not a weakly prime, because it can be changed into another prime (102999509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51499769 + 51499770.

It is an arithmetic number, because the mean of its divisors is an integer number (51499770).

Almost surely, 2^102999539 is an apocalyptic number.

102999539 is a deficient number, since it is larger than the sum of its proper divisors (1).

102999539 is an equidigital number, since it uses as much as digits as its factorization.

102999539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 196830, while the sum is 47.

The square root of 102999539 is about 10148.8688532269. The cubic root of 102999539 is about 468.7541154246.

The spelling of 102999539 in words is "one hundred two million, nine hundred ninety-nine thousand, five hundred thirty-nine".