726053131 has 2 divisors, whose sum is σ = 726053132. Its totient is φ = 726053130.

The previous prime is 726053123. The next prime is 726053161. The reversal of 726053131 is 131350627.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 726053131 - 2³ = 726053123 is a prime.

It is a super-2 number, since 2×726053131² = 1054306298069806322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 726053131.

It is not a weakly prime, because it can be changed into another prime (726053161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363026565 + 363026566.

It is an arithmetic number, because the mean of its divisors is an integer number (363026566).

Almost surely, 2^726053131 is an apocalyptic number.

726053131 is a deficient number, since it is larger than the sum of its proper divisors (1).

726053131 is an equidigital number, since it uses as much as digits as its factorization.

726053131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 726053131 is about 26945.3730907553. The cubic root of 726053131 is about 898.7856589735.

The spelling of 726053131 in words is "seven hundred twenty-six million, fifty-three thousand, one hundred thirty-one".