102999289 has 2 divisors, whose sum is σ = 102999290. Its totient is φ = 102999288.

The previous prime is 102999263. The next prime is 102999341. The reversal of 102999289 is 982999201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100160064 + 2839225 = 10008^2 + 1685^2 .

It is a cyclic number.

It is not a de Polignac number, because 102999289 - 2¹⁹ = 102475001 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (102999229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51499644 + 51499645.

It is an arithmetic number, because the mean of its divisors is an integer number (51499645).

Almost surely, 2^102999289 is an apocalyptic number.

It is an amenable number.

102999289 is a deficient number, since it is larger than the sum of its proper divisors (1).

102999289 is an equidigital number, since it uses as much as digits as its factorization.

102999289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209952, while the sum is 49.

The square root of 102999289 is about 10148.8565365759. The cubic root of 102999289 is about 468.7537361717.

The spelling of 102999289 in words is "one hundred two million, nine hundred ninety-nine thousand, two hundred eighty-nine".