2140551305 has 24 divisors (see below), whose sum is σ = 2755553544. Its totient is φ = 1595635200.

The previous prime is 2140551293. The next prime is 2140551307. The reversal of 2140551305 is 5031550412.

It can be written as a sum of positive squares in 4 ways, for example, as 31629376 + 2108921929 = 5624^2 + 45923^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2140551305 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2140551307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100385 + ... + 119825.

It is an arithmetic number, because the mean of its divisors is an integer number (114814731).

Almost surely, 2^2140551305 is an apocalyptic number.

It is an amenable number.

2140551305 is a deficient number, since it is larger than the sum of its proper divisors (615002239).

2140551305 is a wasteful number, since it uses less digits than its factorization.

2140551305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19545 (or 19526 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 2140551305 is about 46266.0923895675. The cubic root of 2140551305 is about 1288.7693941011.

The spelling of 2140551305 in words is "two billion, one hundred forty million, five hundred fifty-one thousand, three hundred five".