726740143 has 2 divisors, whose sum is σ = 726740144. Its totient is φ = 726740142.

The previous prime is 726740093. The next prime is 726740173. The reversal of 726740143 is 341047627.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 726740143 - 2²⁵ = 693185711 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 726740099 and 726740108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (726740173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363370071 + 363370072.

It is an arithmetic number, because the mean of its divisors is an integer number (363370072).

Almost surely, 2^726740143 is an apocalyptic number.

726740143 is a deficient number, since it is larger than the sum of its proper divisors (1).

726740143 is an equidigital number, since it uses as much as digits as its factorization.

726740143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 726740143 is about 26958.1183134135. The cubic root of 726740143 is about 899.0690550737.

The spelling of 726740143 in words is "seven hundred twenty-six million, seven hundred forty thousand, one hundred forty-three".