726024137 has 2 divisors, whose sum is σ = 726024138. Its totient is φ = 726024136.

The previous prime is 726024133. The next prime is 726024197. The reversal of 726024137 is 731420627.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 590441401 + 135582736 = 24299^2 + 11644^2 .

It is a cyclic number.

It is not a de Polignac number, because 726024137 - 2² = 726024133 is a prime.

It is a super-2 number, since 2×726024137² = 1054222095013189538, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (726024133) 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, 363012068 + 363012069.

It is an arithmetic number, because the mean of its divisors is an integer number (363012069).

Almost surely, 2^726024137 is an apocalyptic number.

It is an amenable number.

726024137 is a deficient number, since it is larger than the sum of its proper divisors (1).

726024137 is an equidigital number, since it uses as much as digits as its factorization.

726024137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 726024137 is about 26944.8350709371. The cubic root of 726024137 is about 898.7736948636.

The spelling of 726024137 in words is "seven hundred twenty-six million, twenty-four thousand, one hundred thirty-seven".