1165943 has 2 divisors, whose sum is σ = 1165944. Its totient is φ = 1165942.

The previous prime is 1165937. The next prime is 1165949. The reversal of 1165943 is 3495611.

It is a balanced prime because it is at equal distance from previous prime (1165937) and next prime (1165949).

It is a cyclic number.

It is not a de Polignac number, because 1165943 - 2¹⁴ = 1149559 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1165949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 582971 + 582972.

It is an arithmetic number, because the mean of its divisors is an integer number (582972).

2^1165943 is an apocalyptic number.

1165943 is a deficient number, since it is larger than the sum of its proper divisors (1).

1165943 is an equidigital number, since it uses as much as digits as its factorization.

1165943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 29.

The square root of 1165943 is about 1079.7884051980. The cubic root of 1165943 is about 105.2508890832.

The spelling of 1165943 in words is "one million, one hundred sixty-five thousand, nine hundred forty-three".