943731161 has 2 divisors, whose sum is σ = 943731162. Its totient is φ = 943731160.

The previous prime is 943731157. The next prime is 943731179. The reversal of 943731161 is 161137349.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 883575625 + 60155536 = 29725^2 + 7756^2 .

It is a cyclic number.

It is not a de Polignac number, because 943731161 - 2² = 943731157 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (943731181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 471865580 + 471865581.

It is an arithmetic number, because the mean of its divisors is an integer number (471865581).

Almost surely, 2^943731161 is an apocalyptic number.

It is an amenable number.

943731161 is a deficient number, since it is larger than the sum of its proper divisors (1).

943731161 is an equidigital number, since it uses as much as digits as its factorization.

943731161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 35.

The square root of 943731161 is about 30720.2076978656. The cubic root of 943731161 is about 980.8804945930.

The spelling of 943731161 in words is "nine hundred forty-three million, seven hundred thirty-one thousand, one hundred sixty-one".