731141 has 2 divisors, whose sum is σ = 731142. Its totient is φ = 731140.

The previous prime is 731117. The next prime is 731173. The reversal of 731141 is 141137.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 450241 + 280900 = 671^2 + 530^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-731141 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 731141.

It is not a weakly prime, because it can be changed into another prime (731191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365570 + 365571.

It is an arithmetic number, because the mean of its divisors is an integer number (365571).

2⁷³¹¹⁴¹ is an apocalyptic number.

It is an amenable number.

731141 is a deficient number, since it is larger than the sum of its proper divisors (1).

731141 is an equidigital number, since it uses as much as digits as its factorization.

731141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84, while the sum is 17.

The square root of 731141 is about 855.0678335664. The cubic root of 731141 is about 90.0880208825.

Adding to 731141 its reverse (141137), we get a palindrome (872278).

The spelling of 731141 in words is "seven hundred thirty-one thousand, one hundred forty-one".