102172006 has 16 divisors (see below), whose sum is σ = 170814960. Its totient is φ = 45550080.

The previous prime is 102171991. The next prime is 102172039. The reversal of 102172006 is 600271201.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78435 + ... + 79726.

It is an arithmetic number, because the mean of its divisors is an integer number (10675935).

Almost surely, 2^102172006 is an apocalyptic number.

102172006 is a deficient number, since it is larger than the sum of its proper divisors (68642954).

102172006 is a wasteful number, since it uses less digits than its factorization.

102172006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158199.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 102172006 is about 10108.0169172791. The cubic root of 102172006 is about 467.4953621319.

The spelling of 102172006 in words is "one hundred two million, one hundred seventy-two thousand, six".