5145128198 has 32 divisors (see below), whose sum is σ = 9220552704. Its totient is φ = 2105322912.

The previous prime is 5145128173. The next prime is 5145128231. The reversal of 5145128198 is 8918215415.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165011 + ... + 193697.

It is an arithmetic number, because the mean of its divisors is an integer number (288142272).

Almost surely, 2^5145128198 is an apocalyptic number.

5145128198 is a deficient number, since it is larger than the sum of its proper divisors (4075424506).

5145128198 is a wasteful number, since it uses less digits than its factorization.

5145128198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29276.

The product of its digits is 115200, while the sum is 44.

The square root of 5145128198 is about 71729.5489878474. The cubic root of 5145128198 is about 1726.3627903909.

The spelling of 5145128198 in words is "five billion, one hundred forty-five million, one hundred twenty-eight thousand, one hundred ninety-eight".