2140893997 has 16 divisors (see below), whose sum is σ = 2488110912. Its totient is φ = 1820517120.

The previous prime is 2140893971. The next prime is 2140894009. The reversal of 2140893997 is 7993980412.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2140893997 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 (2140893397) 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, 4638 + ... + 65599.

It is an arithmetic number, because the mean of its divisors is an integer number (155506932).

Almost surely, 2^2140893997 is an apocalyptic number.

It is an amenable number.

2140893997 is a deficient number, since it is larger than the sum of its proper divisors (347216915).

2140893997 is a wasteful number, since it uses less digits than its factorization.

2140893997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70428.

The product of its (nonzero) digits is 979776, while the sum is 52.

The square root of 2140893997 is about 46269.7957311246. The cubic root of 2140893997 is about 1288.8381656980.

The spelling of 2140893997 in words is "two billion, one hundred forty million, eight hundred ninety-three thousand, nine hundred ninety-seven".