743161 has 2 divisors, whose sum is σ = 743162. Its totient is φ = 743160.

The previous prime is 743159. The next prime is 743167. The reversal of 743161 is 161347.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 383161 + 360000 = 619^2 + 600^2 .

It is a cyclic number.

It is not a de Polignac number, because 743161 - 2¹ = 743159 is a prime.

Together with 743159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (743167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371580 + 371581.

It is an arithmetic number, because the mean of its divisors is an integer number (371581).

2⁷⁴³¹⁶¹ is an apocalyptic number.

It is an amenable number.

743161 is a deficient number, since it is larger than the sum of its proper divisors (1).

743161 is an equidigital number, since it uses as much as digits as its factorization.

743161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 504, while the sum is 22.

The square root of 743161 is about 862.0678627579. The cubic root of 743161 is about 90.5790240040.

The spelling of 743161 in words is "seven hundred forty-three thousand, one hundred sixty-one".