102399589 has 2 divisors, whose sum is σ = 102399590. Its totient is φ = 102399588.

The previous prime is 102399547. The next prime is 102399599. The reversal of 102399589 is 985993201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102212100 + 187489 = 10110^2 + 433^2 .

It is a cyclic number.

It is not a de Polignac number, because 102399589 - 2¹³ = 102391397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102399599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51199794 + 51199795.

It is an arithmetic number, because the mean of its divisors is an integer number (51199795).

Almost surely, 2^102399589 is an apocalyptic number.

It is an amenable number.

102399589 is a deficient number, since it is larger than the sum of its proper divisors (1).

102399589 is an equidigital number, since it uses as much as digits as its factorization.

102399589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 174960, while the sum is 46.

The square root of 102399589 is about 10119.2682047666. The cubic root of 102399589 is about 467.8422121907.

The spelling of 102399589 in words is "one hundred two million, three hundred ninety-nine thousand, five hundred eighty-nine".