102166051 has 4 divisors (see below), whose sum is σ = 110024992. Its totient is φ = 94307112.

The previous prime is 102166013. The next prime is 102166063. The reversal of 102166051 is 150661201.

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 102166051 - 2¹⁹ = 101641763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102166081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3929451 + ... + 3929476.

It is an arithmetic number, because the mean of its divisors is an integer number (27506248).

Almost surely, 2^102166051 is an apocalyptic number.

102166051 is a deficient number, since it is larger than the sum of its proper divisors (7858941).

102166051 is an equidigital number, since it uses as much as digits as its factorization.

102166051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7858940.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 102166051 is about 10107.7223448213. The cubic root of 102166051 is about 467.4862794452.

The spelling of 102166051 in words is "one hundred two million, one hundred sixty-six thousand, fifty-one".