102165201 has 12 divisors (see below), whose sum is σ = 147740112. Its totient is φ = 68032536.

The previous prime is 102165199. The next prime is 102165211. The reversal of 102165201 is 102561201.

102165201 is a `hidden beast` number, since 10 + 2 + 1 + 652 + 0 + 1 = 666.

It is not a de Polignac number, because 102165201 - 2¹ = 102165199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102165211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2530 + ... + 14516.

It is an arithmetic number, because the mean of its divisors is an integer number (12311676).

Almost surely, 2^102165201 is an apocalyptic number.

It is an amenable number.

102165201 is a deficient number, since it is larger than the sum of its proper divisors (45574911).

102165201 is a wasteful number, since it uses less digits than its factorization.

102165201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12940 (or 12937 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 102165201 is about 10107.6802976746. The cubic root of 102165201 is about 467.4849829792.

The spelling of 102165201 in words is "one hundred two million, one hundred sixty-five thousand, two hundred one".