731201113 has 2 divisors, whose sum is σ = 731201114. Its totient is φ = 731201112.

The previous prime is 731201087. The next prime is 731201143. The reversal of 731201113 is 311102137.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 679749184 + 51451929 = 26072^2 + 7173^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-731201113 is a prime.

It is not a weakly prime, because it can be changed into another prime (731201143) 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, 365600556 + 365600557.

It is an arithmetic number, because the mean of its divisors is an integer number (365600557).

Almost surely, 2^731201113 is an apocalyptic number.

It is an amenable number.

731201113 is a deficient number, since it is larger than the sum of its proper divisors (1).

731201113 is an equidigital number, since it uses as much as digits as its factorization.

731201113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 731201113 is about 27040.7306299220. The cubic root of 731201113 is about 900.9048976920.

The spelling of 731201113 in words is "seven hundred thirty-one million, two hundred one thousand, one hundred thirteen".