5181456193 has 2 divisors, whose sum is σ = 5181456194. Its totient is φ = 5181456192.

The previous prime is 5181456179. The next prime is 5181456229. The reversal of 5181456193 is 3916541815.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5045687089 + 135769104 = 71033^2 + 11652^2 .

It is a cyclic number.

It is not a de Polignac number, because 5181456193 - 2¹³ = 5181448001 is a prime.

It is a super-3 number, since 3×5181456193³ (a number of 30 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (5181456113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2590728096 + 2590728097.

It is an arithmetic number, because the mean of its divisors is an integer number (2590728097).

Almost surely, 2^5181456193 is an apocalyptic number.

It is an amenable number.

5181456193 is a deficient number, since it is larger than the sum of its proper divisors (1).

5181456193 is an equidigital number, since it uses as much as digits as its factorization.

5181456193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 43.

The square root of 5181456193 is about 71982.3325059698. The cubic root of 5181456193 is about 1730.4163512813.

The spelling of 5181456193 in words is "five billion, one hundred eighty-one million, four hundred fifty-six thousand, one hundred ninety-three".