5109128 has 16 divisors (see below), whose sum is σ = 9996480. Its totient is φ = 2443408.

The previous prime is 5109121. The next prime is 5109149. The reversal of 5109128 is 8219015.

It is a happy number.

It is a super-2 number, since 2×5109128² = 52206377840768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5109097 and 5109106.

It is not an unprimeable number, because it can be changed into a prime (5109121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13700 + ... + 14067.

It is an arithmetic number, because the mean of its divisors is an integer number (624780).

Almost surely, 2^5109128 is an apocalyptic number.

It is an amenable number.

5109128 is a deficient number, since it is larger than the sum of its proper divisors (4887352).

5109128 is a wasteful number, since it uses less digits than its factorization.

5109128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27796 (or 27792 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 5109128 is about 2260.3380278180. The cubic root of 5109128 is about 172.2326938867.

The spelling of 5109128 in words is "five million, one hundred nine thousand, one hundred twenty-eight".