726954139 has 2 divisors, whose sum is σ = 726954140. Its totient is φ = 726954138.

The previous prime is 726954023. The next prime is 726954157. The reversal of 726954139 is 931459627.

It is a happy number.

726954139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 726954139 - 2¹⁷ = 726823067 is a prime.

It is not a weakly prime, because it can be changed into another prime (726954439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363477069 + 363477070.

It is an arithmetic number, because the mean of its divisors is an integer number (363477070).

Almost surely, 2^726954139 is an apocalyptic number.

726954139 is a deficient number, since it is larger than the sum of its proper divisors (1).

726954139 is an equidigital number, since it uses as much as digits as its factorization.

726954139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408240, while the sum is 46.

The square root of 726954139 is about 26962.0870668426. The cubic root of 726954139 is about 899.1572930782.

The spelling of 726954139 in words is "seven hundred twenty-six million, nine hundred fifty-four thousand, one hundred thirty-nine".