102281895 has 12 divisors (see below), whose sum is σ = 177288696. Its totient is φ = 54550320.

The previous prime is 102281857. The next prime is 102281909. The reversal of 102281895 is 598182201.

It is not a de Polignac number, because 102281895 - 2⁶ = 102281831 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 11 ways as a sum of consecutive naturals, for example, 1136421 + ... + 1136510.

It is an arithmetic number, because the mean of its divisors is an integer number (14774058).

Almost surely, 2^102281895 is an apocalyptic number.

102281895 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

102281895 is a deficient number, since it is larger than the sum of its proper divisors (75006801).

102281895 is a wasteful number, since it uses less digits than its factorization.

102281895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2272942 (or 2272939 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 102281895 is about 10113.4511913590. The cubic root of 102281895 is about 467.6629037554.

The spelling of 102281895 in words is "one hundred two million, two hundred eighty-one thousand, eight hundred ninety-five".