2140557256 has 16 divisors (see below), whose sum is σ = 4051056240. Its totient is φ = 1060275600.

The previous prime is 2140557247. The next prime is 2140557257. The reversal of 2140557256 is 6527550412.

It is not an unprimeable number, because it can be changed into a prime (2140557257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1249470 + ... + 1251181.

It is an arithmetic number, because the mean of its divisors is an integer number (253191015).

Almost surely, 2^2140557256 is an apocalyptic number.

It is an amenable number.

2140557256 is a deficient number, since it is larger than the sum of its proper divisors (1910498984).

2140557256 is a wasteful number, since it uses less digits than its factorization.

2140557256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2500764 (or 2500760 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 37.

The square root of 2140557256 is about 46266.1567022808. The cubic root of 2140557256 is about 1288.7705884133.

The spelling of 2140557256 in words is "two billion, one hundred forty million, five hundred fifty-seven thousand, two hundred fifty-six".