102270172 has 12 divisors (see below), whose sum is σ = 180646200. Its totient is φ = 50656976.

The previous prime is 102270151. The next prime is 102270197. The reversal of 102270172 is 271072201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119047 + ... + 119902.

It is an arithmetic number, because the mean of its divisors is an integer number (15053850).

Almost surely, 2^102270172 is an apocalyptic number.

It is an amenable number.

102270172 is a deficient number, since it is larger than the sum of its proper divisors (78376028).

102270172 is a wasteful number, since it uses less digits than its factorization.

102270172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239060 (or 239058 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 102270172 is about 10112.8716000946. The cubic root of 102270172 is about 467.6450360715.

The spelling of 102270172 in words is "one hundred two million, two hundred seventy thousand, one hundred seventy-two".