2143314091 has 4 divisors (see below), whose sum is σ = 2172674632. Its totient is φ = 2113953552.

The previous prime is 2143314077. The next prime is 2143314101. The reversal of 2143314091 is 1904133412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2143314091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2143314001) 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, 14680161 + ... + 14680306.

It is an arithmetic number, because the mean of its divisors is an integer number (543168658).

Almost surely, 2^2143314091 is an apocalyptic number.

2143314091 is a deficient number, since it is larger than the sum of its proper divisors (29360541).

2143314091 is an equidigital number, since it uses as much as digits as its factorization.

2143314091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29360540.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 2143314091 is about 46295.9403295797. The cubic root of 2143314091 is about 1289.3236225461.

The spelling of 2143314091 in words is "two billion, one hundred forty-three million, three hundred fourteen thousand, ninety-one".