2143151005 has 4 divisors (see below), whose sum is σ = 2571781212. Its totient is φ = 1714520800.

The previous prime is 2143150981. The next prime is 2143151029. The reversal of 2143151005 is 5001513412.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (2143150981) and next prime (2143151029).

It can be written as a sum of positive squares in 2 ways, for example, as 599368324 + 1543782681 = 24482^2 + 39291^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2143151005 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214315096 + ... + 214315105.

It is an arithmetic number, because the mean of its divisors is an integer number (642945303).

Almost surely, 2^2143151005 is an apocalyptic number.

It is an amenable number.

2143151005 is a deficient number, since it is larger than the sum of its proper divisors (428630207).

2143151005 is an equidigital number, since it uses as much as digits as its factorization.

2143151005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428630206.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 2143151005 is about 46294.1789537302. The cubic root of 2143151005 is about 1289.2909199250.

Adding to 2143151005 its reverse (5001513412), we get a palindrome (7144664417).

The spelling of 2143151005 in words is "two billion, one hundred forty-three million, one hundred fifty-one thousand, five".