102187475 has 12 divisors (see below), whose sum is σ = 136460016. Its totient is φ = 75461280.

The previous prime is 102187441. The next prime is 102187487. The reversal of 102187475 is 574781201.

It is not a de Polignac number, because 102187475 - 2²² = 97993171 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 156887 + ... + 157536.

It is an arithmetic number, because the mean of its divisors is an integer number (11371668).

Almost surely, 2^102187475 is an apocalyptic number.

102187475 is a deficient number, since it is larger than the sum of its proper divisors (34272541).

102187475 is a wasteful number, since it uses less digits than its factorization.

102187475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314446 (or 314441 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 35.

The square root of 102187475 is about 10108.7820730294. The cubic root of 102187475 is about 467.5189541154.

The spelling of 102187475 in words is "one hundred two million, one hundred eighty-seven thousand, four hundred seventy-five".