5128723 has 2 divisors, whose sum is σ = 5128724. Its totient is φ = 5128722.

The previous prime is 5128691. The next prime is 5128751. The reversal of 5128723 is 3278215.

5128723 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (5128751) can be obtained adding 5128723 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5128723 - 2⁵ = 5128691 is a prime.

It is a super-2 number, since 2×5128723² = 52607599221458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5128691 and 5128700.

It is not a weakly prime, because it can be changed into another prime (5128523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2564361 + 2564362.

It is an arithmetic number, because the mean of its divisors is an integer number (2564362).

Almost surely, 2^5128723 is an apocalyptic number.

5128723 is a deficient number, since it is larger than the sum of its proper divisors (1).

5128723 is an equidigital number, since it uses as much as digits as its factorization.

5128723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 28.

The square root of 5128723 is about 2264.6684083989. The cubic root of 5128723 is about 172.4526005734.

The spelling of 5128723 in words is "five million, one hundred twenty-eight thousand, seven hundred twenty-three".