726195251 has 2 divisors, whose sum is σ = 726195252. Its totient is φ = 726195250.

The previous prime is 726195247. The next prime is 726195269. The reversal of 726195251 is 152591627.

It is a happy number.

726195251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 726195251 - 2² = 726195247 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (726195551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363097625 + 363097626.

It is an arithmetic number, because the mean of its divisors is an integer number (363097626).

Almost surely, 2^726195251 is an apocalyptic number.

726195251 is a deficient number, since it is larger than the sum of its proper divisors (1).

726195251 is an equidigital number, since it uses as much as digits as its factorization.

726195251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37800, while the sum is 38.

The square root of 726195251 is about 26948.0101491743. The cubic root of 726195251 is about 898.8442988897.

The spelling of 726195251 in words is "seven hundred twenty-six million, one hundred ninety-five thousand, two hundred fifty-one".