5136421193 has 2 divisors, whose sum is σ = 5136421194. Its totient is φ = 5136421192.

The previous prime is 5136421181. The next prime is 5136421237. The reversal of 5136421193 is 3911246315.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4600637584 + 535783609 = 67828^2 + 23147^2 .

It is a cyclic number.

It is not a de Polignac number, because 5136421193 - 2¹⁴ = 5136404809 is a prime.

It is not a weakly prime, because it can be changed into another prime (5136421163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2568210596 + 2568210597.

It is an arithmetic number, because the mean of its divisors is an integer number (2568210597).

Almost surely, 2^5136421193 is an apocalyptic number.

It is an amenable number.

5136421193 is a deficient number, since it is larger than the sum of its proper divisors (1).

5136421193 is an equidigital number, since it uses as much as digits as its factorization.

5136421193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 35.

The square root of 5136421193 is about 71668.8299960311. The cubic root of 5136421193 is about 1725.3884099675.

The spelling of 5136421193 in words is "five billion, one hundred thirty-six million, four hundred twenty-one thousand, one hundred ninety-three".