102615125 has 8 divisors (see below), whose sum is σ = 128063832. Its totient is φ = 82092000.

The previous prime is 102615083. The next prime is 102615193. The reversal of 102615125 is 521516201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12327121 + 90288004 = 3511^2 + 9502^2 .

It is not a de Polignac number, because 102615125 - 2²² = 98420821 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 102615125.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 410336 + ... + 410585.

It is an arithmetic number, because the mean of its divisors is an integer number (16007979).

Almost surely, 2^102615125 is an apocalyptic number.

It is an amenable number.

102615125 is a deficient number, since it is larger than the sum of its proper divisors (25448707).

102615125 is an frugal number, since it uses more digits than its factorization.

102615125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820936 (or 820926 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 102615125 is about 10129.9123885649. The cubic root of 102615125 is about 468.1702283926.

The spelling of 102615125 in words is "one hundred two million, six hundred fifteen thousand, one hundred twenty-five".