2187137085 has 32 divisors (see below), whose sum is σ = 4040585472. Its totient is φ = 989521920.

The previous prime is 2187137083. The next prime is 2187137153. The reversal of 2187137085 is 5807317812.

It is not a de Polignac number, because 2187137085 - 2¹ = 2187137083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2187137083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97186 + ... + 117555.

It is an arithmetic number, because the mean of its divisors is an integer number (126268296).

Almost surely, 2^2187137085 is an apocalyptic number.

It is an amenable number.

2187137085 is a deficient number, since it is larger than the sum of its proper divisors (1853448387).

2187137085 is a wasteful number, since it uses less digits than its factorization.

2187137085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214853.

The product of its (nonzero) digits is 94080, while the sum is 42.

The square root of 2187137085 is about 46766.8374492011. The cubic root of 2187137085 is about 1298.0517335307.

The spelling of 2187137085 in words is "two billion, one hundred eighty-seven million, one hundred thirty-seven thousand, eighty-five".