2102855039 has 8 divisors (see below), whose sum is σ = 2217120000. Its totient is φ = 1988948952.

The previous prime is 2102854997. The next prime is 2102855071. The reversal of 2102855039 is 9305582012.

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 2102855039 - 2¹² = 2102850943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102855939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77639 + ... + 101160.

It is an arithmetic number, because the mean of its divisors is an integer number (277140000).

Almost surely, 2^2102855039 is an apocalyptic number.

2102855039 is a deficient number, since it is larger than the sum of its proper divisors (114264961).

2102855039 is a wasteful number, since it uses less digits than its factorization.

2102855039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179437.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 2102855039 is about 45856.8973983195. The cubic root of 2102855039 is about 1281.1592360721.

It can be divided in two parts, 21028 and 55039, that added together give a palindrome (76067).

The spelling of 2102855039 in words is "two billion, one hundred two million, eight hundred fifty-five thousand, thirty-nine".