1158841 has 2 divisors, whose sum is σ = 1158842. Its totient is φ = 1158840.

The previous prime is 1158827. The next prime is 1158847. The reversal of 1158841 is 1488511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1071225 + 87616 = 1035^2 + 296^2 .

It is a cyclic number.

It is not a de Polignac number, because 1158841 - 2⁷ = 1158713 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (1158847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 579420 + 579421.

It is an arithmetic number, because the mean of its divisors is an integer number (579421).

2^1158841 is an apocalyptic number.

It is an amenable number.

1158841 is a deficient number, since it is larger than the sum of its proper divisors (1).

1158841 is an equidigital number, since it uses as much as digits as its factorization.

1158841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1280, while the sum is 28.

The square root of 1158841 is about 1076.4947747202. The cubic root of 1158841 is about 105.0367520627.

The spelling of 1158841 in words is "one million, one hundred fifty-eight thousand, eight hundred forty-one".