5133771421 has 2 divisors, whose sum is σ = 5133771422. Its totient is φ = 5133771420.

The previous prime is 5133771389. The next prime is 5133771451. The reversal of 5133771421 is 1241773315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3749112900 + 1384658521 = 61230^2 + 37211^2 .

It is a cyclic number.

It is not a de Polignac number, because 5133771421 - 2⁵ = 5133771389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5133771451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2566885710 + 2566885711.

It is an arithmetic number, because the mean of its divisors is an integer number (2566885711).

Almost surely, 2^5133771421 is an apocalyptic number.

It is an amenable number.

5133771421 is a deficient number, since it is larger than the sum of its proper divisors (1).

5133771421 is an equidigital number, since it uses as much as digits as its factorization.

5133771421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17640, while the sum is 34.

The square root of 5133771421 is about 71650.3413878817. The cubic root of 5133771421 is about 1725.0916616979.

The spelling of 5133771421 in words is "five billion, one hundred thirty-three million, seven hundred seventy-one thousand, four hundred twenty-one".