102815201 has 8 divisors (see below), whose sum is σ = 109154304. Its totient is φ = 96508480.

The previous prime is 102815191. The next prime is 102815227. The reversal of 102815201 is 102518201.

It is a happy number.

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 102815201 - 2²² = 98620897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102815501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1385 + ... + 14406.

It is an arithmetic number, because the mean of its divisors is an integer number (13644288).

Almost surely, 2^102815201 is an apocalyptic number.

It is an amenable number.

102815201 is a deficient number, since it is larger than the sum of its proper divisors (6339103).

102815201 is a wasteful number, since it uses less digits than its factorization.

102815201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16191.

The product of its (nonzero) digits is 160, while the sum is 20.

The square root of 102815201 is about 10139.7830844649. The cubic root of 102815201 is about 468.4743057703.

The spelling of 102815201 in words is "one hundred two million, eight hundred fifteen thousand, two hundred one".