102087475 has 24 divisors (see below), whose sum is σ = 152291840. Its totient is φ = 66316320.

The previous prime is 102087463. The next prime is 102087481. The reversal of 102087475 is 574780201.

It is a happy number.

It is not a de Polignac number, because 102087475 - 2⁷ = 102087347 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102087475.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12027 + ... + 18676.

Almost surely, 2^102087475 is an apocalyptic number.

102087475 is a deficient number, since it is larger than the sum of its proper divisors (50204365).

102087475 is a wasteful number, since it uses less digits than its factorization.

102087475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30739 (or 30734 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 102087475 is about 10103.8346680852. The cubic root of 102087475 is about 467.3664006703.

The spelling of 102087475 in words is "one hundred two million, eighty-seven thousand, four hundred seventy-five".