5123319191 has 16 divisors (see below), whose sum is σ = 5480079360. Its totient is φ = 4779099360.

The previous prime is 5123319169. The next prime is 5123319193. The reversal of 5123319191 is 1919133215.

It is a cyclic number.

It is not a de Polignac number, because 5123319191 - 2⁶ = 5123319127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5123319193) 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 in 15 ways as a sum of consecutive naturals, for example, 573626 + ... + 582488.

It is an arithmetic number, because the mean of its divisors is an integer number (342504960).

Almost surely, 2^5123319191 is an apocalyptic number.

5123319191 is a deficient number, since it is larger than the sum of its proper divisors (356760169).

5123319191 is a wasteful number, since it uses less digits than its factorization.

5123319191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9566.

The product of its digits is 7290, while the sum is 35.

The square root of 5123319191 is about 71577.3650744424. The cubic root of 5123319191 is about 1723.9201184584.

The spelling of 5123319191 in words is "five billion, one hundred twenty-three million, three hundred nineteen thousand, one hundred ninety-one".