5128901 has 2 divisors, whose sum is σ = 5128902. Its totient is φ = 5128900.

The previous prime is 5128897. The next prime is 5128909. The reversal of 5128901 is 1098215.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3806401 + 1322500 = 1951^2 + 1150^2 .

It is a cyclic number.

It is not a de Polignac number, because 5128901 - 2² = 5128897 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5128909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2564450 + 2564451.

It is an arithmetic number, because the mean of its divisors is an integer number (2564451).

Almost surely, 2^5128901 is an apocalyptic number.

It is an amenable number.

5128901 is a deficient number, since it is larger than the sum of its proper divisors (1).

5128901 is an equidigital number, since it uses as much as digits as its factorization.

5128901 is an evil number, because the sum of its binary digits is even.

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

The square root of 5128901 is about 2264.7077074095. The cubic root of 5128901 is about 172.4545956254.

The spelling of 5128901 in words is "five million, one hundred twenty-eight thousand, nine hundred one".