102509930 has 16 divisors (see below), whose sum is σ = 184633344. Its totient is φ = 40978320.

The previous prime is 102509929. The next prime is 102509941. The reversal of 102509930 is 39905201.

It is a junction number, because it is equal to n+sod(n) for n = 102509893 and 102509902.

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, 28535 + ... + 31925.

It is an arithmetic number, because the mean of its divisors is an integer number (11539584).

Almost surely, 2^102509930 is an apocalyptic number.

102509930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102509930 is a deficient number, since it is larger than the sum of its proper divisors (82123414).

102509930 is a wasteful number, since it uses less digits than its factorization.

102509930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6421.

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 102509930 is about 10124.7187615262. The cubic root of 102509930 is about 468.0101934858.

The spelling of 102509930 in words is "one hundred two million, five hundred nine thousand, nine hundred thirty".