2100715385 has 8 divisors (see below), whose sum is σ = 2545333440. Its totient is φ = 1664255664.

The previous prime is 2100715363. The next prime is 2100715391. The reversal of 2100715385 is 5835170012.

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 2100715385 - 2⁶ = 2100715321 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2039015 + ... + 2040044.

It is an arithmetic number, because the mean of its divisors is an integer number (318166680).

Almost surely, 2^2100715385 is an apocalyptic number.

It is an amenable number.

2100715385 is a deficient number, since it is larger than the sum of its proper divisors (444618055).

2100715385 is a wasteful number, since it uses less digits than its factorization.

2100715385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4079167.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 2100715385 is about 45833.5617751883. The cubic root of 2100715385 is about 1280.7245623079.

Adding to 2100715385 its reverse (5835170012), we get a palindrome (7935885397).

The spelling of 2100715385 in words is "two billion, one hundred million, seven hundred fifteen thousand, three hundred eighty-five".