102015065 has 4 divisors (see below), whose sum is σ = 122418084. Its totient is φ = 81612048.

The previous prime is 102015041. The next prime is 102015073. The reversal of 102015065 is 560510201.

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

It can be written as a sum of positive squares in 2 ways, for example, as 39589264 + 62425801 = 6292^2 + 7901^2 .

It is a cyclic number.

It is not a de Polignac number, because 102015065 - 2¹⁰ = 102014041 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, 10201502 + ... + 10201511.

It is an arithmetic number, because the mean of its divisors is an integer number (30604521).

Almost surely, 2^102015065 is an apocalyptic number.

It is an amenable number.

102015065 is a deficient number, since it is larger than the sum of its proper divisors (20403019).

102015065 is an equidigital number, since it uses as much as digits as its factorization.

102015065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20403018.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 102015065 is about 10100.2507394619. The cubic root of 102015065 is about 467.2558745242.

Adding to 102015065 its reverse (560510201), we get a palindrome (662525266).

The spelling of 102015065 in words is "one hundred two million, fifteen thousand, sixty-five".