2129001585 has 16 divisors (see below), whose sum is σ = 3585687360. Its totient is φ = 1075705920.

The previous prime is 2129001583. The next prime is 2129001619. The reversal of 2129001585 is 5851009212.

It is not a de Polignac number, because 2129001585 - 2¹ = 2129001583 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2129001583) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3734806 + ... + 3735375.

It is an arithmetic number, because the mean of its divisors is an integer number (224105460).

Almost surely, 2^2129001585 is an apocalyptic number.

It is an amenable number.

2129001585 is a deficient number, since it is larger than the sum of its proper divisors (1456685775).

2129001585 is a wasteful number, since it uses less digits than its factorization.

2129001585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7470208.

The product of its (nonzero) digits is 7200, while the sum is 33.

The square root of 2129001585 is about 46141.1051558152. The cubic root of 2129001585 is about 1286.4472855302.

The spelling of 2129001585 in words is "two billion, one hundred twenty-nine million, one thousand, five hundred eighty-five".