102068515 has 4 divisors (see below), whose sum is σ = 122482224. Its totient is φ = 81654808.

The previous prime is 102068509. The next prime is 102068539. The reversal of 102068515 is 515860201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102068515 - 2⁹ = 102068003 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10206847 + ... + 10206856.

It is an arithmetic number, because the mean of its divisors is an integer number (30620556).

Almost surely, 2^102068515 is an apocalyptic number.

102068515 is a deficient number, since it is larger than the sum of its proper divisors (20413709).

102068515 is an equidigital number, since it uses as much as digits as its factorization.

102068515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20413708.

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 102068515 is about 10102.8963668841. The cubic root of 102068515 is about 467.3374653035.

It can be divided in two parts, 10206 and 8515, that added together give a triangular number (18721 = T₁₉₃).

The spelling of 102068515 in words is "one hundred two million, sixty-eight thousand, five hundred fifteen".