5243531971 has 2 divisors, whose sum is σ = 5243531972. Its totient is φ = 5243531970.

The previous prime is 5243531959. The next prime is 5243531987. The reversal of 5243531971 is 1791353425.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5243531971 - 2⁵ = 5243531939 is a prime.

It is not a weakly prime, because it can be changed into another prime (5243531911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2621765985 + 2621765986.

It is an arithmetic number, because the mean of its divisors is an integer number (2621765986).

Almost surely, 2^5243531971 is an apocalyptic number.

5243531971 is a deficient number, since it is larger than the sum of its proper divisors (1).

5243531971 is an equidigital number, since it uses as much as digits as its factorization.

5243531971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 40.

The square root of 5243531971 is about 72412.2363347522. The cubic root of 5243531971 is about 1737.2992817910.

The spelling of 5243531971 in words is "five billion, two hundred forty-three million, five hundred thirty-one thousand, nine hundred seventy-one".