726401051 has 2 divisors, whose sum is σ = 726401052. Its totient is φ = 726401050.

The previous prime is 726401029. The next prime is 726401099. The reversal of 726401051 is 150104627.

It is a weak prime.

It is an emirp because it is prime and its reverse (150104627) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 726401051 - 2¹⁴ = 726384667 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 726401051.

It is not a weakly prime, because it can be changed into another prime (726401651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363200525 + 363200526.

It is an arithmetic number, because the mean of its divisors is an integer number (363200526).

Almost surely, 2^726401051 is an apocalyptic number.

726401051 is a deficient number, since it is larger than the sum of its proper divisors (1).

726401051 is an equidigital number, since it uses as much as digits as its factorization.

726401051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 726401051 is about 26951.8283424335. The cubic root of 726401051 is about 898.9292001541.

Adding to 726401051 its reverse (150104627), we get a palindrome (876505678).

The spelling of 726401051 in words is "seven hundred twenty-six million, four hundred one thousand, fifty-one".