102190725 has 216 divisors, whose sum is σ = 246984192. Its totient is φ = 39916800.

The previous prime is 102190717. The next prime is 102190733. The reversal of 102190725 is 527091201.

It is an interprime number because it is at equal distance from previous prime (102190717) and next prime (102190733).

It is not a de Polignac number, because 102190725 - 2³ = 102190717 is a prime.

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 215 ways as a sum of consecutive naturals, for example, 3296460 + ... + 3296490.

Almost surely, 2^102190725 is an apocalyptic number.

102190725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102190725 is an abundant number, since it is smaller than the sum of its proper divisors (144793467).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102190725 is a wasteful number, since it uses less digits than its factorization.

102190725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97 (or 82 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 102190725 is about 10108.9428230651. The cubic root of 102190725 is about 467.5239104322.

The spelling of 102190725 in words is "one hundred two million, one hundred ninety thousand, seven hundred twenty-five".