102905530 has 32 divisors (see below), whose sum is σ = 227977344. Its totient is φ = 32567616.

The previous prime is 102905527. The next prime is 102905557. The reversal of 102905530 is 35509201.

It is a junction number, because it is equal to n+sod(n) for n = 102905495 and 102905504.

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 15 ways as a sum of consecutive naturals, for example, 55632 + ... + 57451.

It is an arithmetic number, because the mean of its divisors is an integer number (7124292).

Almost surely, 2^102905530 is an apocalyptic number.

102905530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102905530 is an abundant number, since it is smaller than the sum of its proper divisors (125071814).

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

102905530 is a wasteful number, since it uses less digits than its factorization.

102905530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113110.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 102905530 is about 10144.2362945665. The cubic root of 102905530 is about 468.6114593838.

The spelling of 102905530 in words is "one hundred two million, nine hundred five thousand, five hundred thirty".