102908625 has 16 divisors (see below), whose sum is σ = 171240576. Its totient is φ = 54884400.

The previous prime is 102908621. The next prime is 102908657. The reversal of 102908625 is 526809201.

It is not a de Polignac number, because 102908625 - 2² = 102908621 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102908621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136837 + ... + 137586.

It is an arithmetic number, because the mean of its divisors is an integer number (10702536).

Almost surely, 2^102908625 is an apocalyptic number.

102908625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102908625 is a deficient number, since it is larger than the sum of its proper divisors (68331951).

102908625 is an equidigital number, since it uses as much as digits as its factorization.

102908625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274441 (or 274431 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 102908625 is about 10144.3888430994. The cubic root of 102908625 is about 468.6161573430.

It can be divided in two parts, 10290 and 8625, that added together give a triangular number (18915 = T₁₉₄).

The spelling of 102908625 in words is "one hundred two million, nine hundred eight thousand, six hundred twenty-five".