102508530 has 16 divisors (see below), whose sum is σ = 246020544. Its totient is φ = 27335600.

The previous prime is 102508507. The next prime is 102508531. The reversal of 102508530 is 35805201.

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 102508530.

It is not an unprimeable number, because it can be changed into a prime (102508531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1708446 + ... + 1708505.

It is an arithmetic number, because the mean of its divisors is an integer number (15376284).

Almost surely, 2^102508530 is an apocalyptic number.

102508530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102508530 is an abundant number, since it is smaller than the sum of its proper divisors (143512014).

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

102508530 is a wasteful number, since it uses less digits than its factorization.

102508530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3416961.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 102508530 is about 10124.6496235672. The cubic root of 102508530 is about 468.0080629044.

The spelling of 102508530 in words is "one hundred two million, five hundred eight thousand, five hundred thirty".