2151167243 has 2 divisors, whose sum is σ = 2151167244. Its totient is φ = 2151167242.

The previous prime is 2151167203. The next prime is 2151167261. The reversal of 2151167243 is 3427611512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2151167243 - 2¹⁰ = 2151166219 is a prime.

It is not a weakly prime, because it can be changed into another prime (2151167203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1075583621 + 1075583622.

It is an arithmetic number, because the mean of its divisors is an integer number (1075583622).

Almost surely, 2^2151167243 is an apocalyptic number.

2151167243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2151167243 is an equidigital number, since it uses as much as digits as its factorization.

2151167243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 32.

The square root of 2151167243 is about 46380.6774745691. The cubic root of 2151167243 is about 1290.8964069785.

Adding to 2151167243 its reverse (3427611512), we get a palindrome (5578778755).

The spelling of 2151167243 in words is "two billion, one hundred fifty-one million, one hundred sixty-seven thousand, two hundred forty-three".