726054137 has 2 divisors, whose sum is σ = 726054138. Its totient is φ = 726054136.

The previous prime is 726054113. The next prime is 726054157. The reversal of 726054137 is 731450627.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 620807056 + 105247081 = 24916^2 + 10259^2 .

It is a cyclic number.

It is not a de Polignac number, because 726054137 - 2¹⁰ = 726053113 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 726054097 and 726054106.

It is not a weakly prime, because it can be changed into another prime (726054157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363027068 + 363027069.

It is an arithmetic number, because the mean of its divisors is an integer number (363027069).

Almost surely, 2^726054137 is an apocalyptic number.

It is an amenable number.

726054137 is a deficient number, since it is larger than the sum of its proper divisors (1).

726054137 is an equidigital number, since it uses as much as digits as its factorization.

726054137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 726054137 is about 26945.3917581467. The cubic root of 726054137 is about 898.7860740845.

The spelling of 726054137 in words is "seven hundred twenty-six million, fifty-four thousand, one hundred thirty-seven".