102281933 has 8 divisors (see below), whose sum is σ = 111956376. Its totient is φ = 92865600.

The previous prime is 102281929. The next prime is 102281939. The reversal of 102281933 is 339182201.

It can be written as a sum of positive squares in 4 ways, for example, as 6770404 + 95511529 = 2602^2 + 9773^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102281933 - 2² = 102281929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102281896 and 102281905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102281939) by changing a digit.

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, 63698 + ... + 65283.

It is an arithmetic number, because the mean of its divisors is an integer number (13994547).

Almost surely, 2^102281933 is an apocalyptic number.

102281933 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

102281933 is a deficient number, since it is larger than the sum of its proper divisors (9674443).

102281933 is a wasteful number, since it uses less digits than its factorization.

102281933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129055.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 102281933 is about 10113.4530700449. The cubic root of 102281933 is about 467.6629616711.

The spelling of 102281933 in words is "one hundred two million, two hundred eighty-one thousand, nine hundred thirty-three".