2156140814 has 8 divisors (see below), whose sum is σ = 3235918248. Its totient is φ = 1077501400.

The previous prime is 2156140813. The next prime is 2156140823. The reversal of 2156140814 is 4180416512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2156140813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279752 + ... + 287355.

It is an arithmetic number, because the mean of its divisors is an integer number (404489781).

Almost surely, 2^2156140814 is an apocalyptic number.

2156140814 is a deficient number, since it is larger than the sum of its proper divisors (1079777434).

2156140814 is a wasteful number, since it uses less digits than its factorization.

2156140814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569010.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 2156140814 is about 46434.2633623061. The cubic root of 2156140814 is about 1291.8905065411.

The spelling of 2156140814 in words is "two billion, one hundred fifty-six million, one hundred forty thousand, eight hundred fourteen".