102078865 has 8 divisors (see below), whose sum is σ = 139993920. Its totient is φ = 69996912.

The previous prime is 102078859. The next prime is 102078883. The reversal of 102078865 is 568870201.

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

It is a cyclic number.

It is not a de Polignac number, because 102078865 - 2⁵ = 102078833 is a prime.

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, 1458235 + ... + 1458304.

It is an arithmetic number, because the mean of its divisors is an integer number (17499240).

Almost surely, 2^102078865 is an apocalyptic number.

It is an amenable number.

102078865 is a deficient number, since it is larger than the sum of its proper divisors (37915055).

102078865 is an equidigital number, since it uses as much as digits as its factorization.

102078865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2916551.

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 102078865 is about 10103.4085832456. The cubic root of 102078865 is about 467.3532611614.

The spelling of 102078865 in words is "one hundred two million, seventy-eight thousand, eight hundred sixty-five".