102783055 has 8 divisors (see below), whose sum is σ = 123458112. Its totient is φ = 82147488.

The previous prime is 102783041. The next prime is 102783061. The reversal of 102783055 is 550387201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102783055 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3804 + ... + 14833.

It is an arithmetic number, because the mean of its divisors is an integer number (15432264).

Almost surely, 2^102783055 is an apocalyptic number.

102783055 is a deficient number, since it is larger than the sum of its proper divisors (20675057).

102783055 is a wasteful number, since it uses less digits than its factorization.

102783055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19745.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 102783055 is about 10138.1978181529. The cubic root of 102783055 is about 468.4254765937.

The spelling of 102783055 in words is "one hundred two million, seven hundred eighty-three thousand, fifty-five".