102839605 has 16 divisors (see below), whose sum is σ = 135825984. Its totient is φ = 74126080.

The previous prime is 102839599. The next prime is 102839621. The reversal of 102839605 is 506938201.

It is not a de Polignac number, because 102839605 - 2¹⁷ = 102708533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2059 + ... + 14488.

It is an arithmetic number, because the mean of its divisors is an integer number (8489124).

Almost surely, 2^102839605 is an apocalyptic number.

It is an amenable number.

102839605 is a deficient number, since it is larger than the sum of its proper divisors (32986379).

102839605 is a wasteful number, since it uses less digits than its factorization.

102839605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16676.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 102839605 is about 10140.9863918654. The cubic root of 102839605 is about 468.5113681969.

The spelling of 102839605 in words is "one hundred two million, eight hundred thirty-nine thousand, six hundred five".