102399385 has 8 divisors (see below), whose sum is σ = 134050176. Its totient is φ = 74472240.

The previous prime is 102399361. The next prime is 102399439. The reversal of 102399385 is 583993201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102399385 - 2²⁵ = 68844953 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 930849 + ... + 930958.

It is an arithmetic number, because the mean of its divisors is an integer number (16756272).

Almost surely, 2^102399385 is an apocalyptic number.

It is an amenable number.

102399385 is a deficient number, since it is larger than the sum of its proper divisors (31650791).

102399385 is a wasteful number, since it uses less digits than its factorization.

102399385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1861823.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 102399385 is about 10119.2581249813. The cubic root of 102399385 is about 467.8419015128.

The spelling of 102399385 in words is "one hundred two million, three hundred ninety-nine thousand, three hundred eighty-five".