1166141 has 2 divisors, whose sum is σ = 1166142. Its totient is φ = 1166140.

The previous prime is 1166131. The next prime is 1166147. The reversal of 1166141 is 1416611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1110916 + 55225 = 1054^2 + 235^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1166141 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1166147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 583070 + 583071.

It is an arithmetic number, because the mean of its divisors is an integer number (583071).

2^1166141 is an apocalyptic number.

It is an amenable number.

1166141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1166141 is an equidigital number, since it uses as much as digits as its factorization.

1166141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 20.

The square root of 1166141 is about 1079.8800859355. The cubic root of 1166141 is about 105.2568466348.

The spelling of 1166141 in words is "one million, one hundred sixty-six thousand, one hundred forty-one".