2143071045 has 54 divisors (see below), whose sum is σ = 3807892998. Its totient is φ = 1114980768.

The previous prime is 2143071037. The next prime is 2143071053. The reversal of 2143071045 is 5401703412.

It is an interprime number because it is at equal distance from previous prime (2143071037) and next prime (2143071053).

It can be written as a sum of positive squares in only one way, i.e., 1714456836 + 428614209 = 41406^2 + 20703^2 .

It is not a de Polignac number, because 2143071045 - 2³ = 2143071037 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 20806464 + ... + 20806566.

It is an arithmetic number, because the mean of its divisors is an integer number (70516537).

Almost surely, 2^2143071045 is an apocalyptic number.

It is an amenable number.

2143071045 is a deficient number, since it is larger than the sum of its proper divisors (1664821953).

2143071045 is an equidigital number, since it uses as much as digits as its factorization.

2143071045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 2143071045 is about 46293.3153381781. The cubic root of 2143071045 is about 1289.2748854375.

Adding to 2143071045 its reverse (5401703412), we get a palindrome (7544774457).

The spelling of 2143071045 in words is "two billion, one hundred forty-three million, seventy-one thousand, forty-five".