722125801 has 2 divisors, whose sum is σ = 722125802. Its totient is φ = 722125800.

The previous prime is 722125793. The next prime is 722125829. The reversal of 722125801 is 108521227.

722125801 is digitally balanced in base 2, 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 (722125829) can be obtained adding 722125801 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 494840025 + 227285776 = 22245^2 + 15076^2 .

It is an emirp because it is prime and its reverse (108521227) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 722125801 - 2³ = 722125793 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 722125801.

It is not a weakly prime, because it can be changed into another prime (722125891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361062900 + 361062901.

It is an arithmetic number, because the mean of its divisors is an integer number (361062901).

Almost surely, 2^722125801 is an apocalyptic number.

It is an amenable number.

722125801 is a deficient number, since it is larger than the sum of its proper divisors (1).

722125801 is an equidigital number, since it uses as much as digits as its factorization.

722125801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 722125801 is about 26872.3984973430. The cubic root of 722125801 is about 897.1621728576.

The spelling of 722125801 in words is "seven hundred twenty-two million, one hundred twenty-five thousand, eight hundred one".