102803281 has 16 divisors (see below), whose sum is σ = 124185600. Its totient is φ = 83133648.

The previous prime is 102803273. The next prime is 102803297. The reversal of 102803281 is 182308201.

It is a cyclic number.

It is not a de Polignac number, because 102803281 - 2³ = 102803273 is a prime.

It is a super-2 number, since 2×102803281² = 21137029168729922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102803251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33510 + ... + 36448.

It is an arithmetic number, because the mean of its divisors is an integer number (7761600).

Almost surely, 2^102803281 is an apocalyptic number.

It is an amenable number.

102803281 is a deficient number, since it is larger than the sum of its proper divisors (21382319).

102803281 is a wasteful number, since it uses less digits than its factorization.

102803281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3228.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 102803281 is about 10139.1952836505. The cubic root of 102803281 is about 468.4562006993.

The spelling of 102803281 in words is "one hundred two million, eight hundred three thousand, two hundred eighty-one".