1159001 has 2 divisors, whose sum is σ = 1159002. Its totient is φ = 1159000.

The previous prime is 1158991. The next prime is 1159007. The reversal of 1159001 is 1009511.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1157776 + 1225 = 1076^2 + 35^2 .

It is a cyclic number.

It is not a de Polignac number, because 1159001 - 2¹⁰ = 1157977 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1159007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 579500 + 579501.

It is an arithmetic number, because the mean of its divisors is an integer number (579501).

2^1159001 is an apocalyptic number.

It is an amenable number.

1159001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1159001 is an equidigital number, since it uses as much as digits as its factorization.

1159001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45, while the sum is 17.

The square root of 1159001 is about 1076.5690874254. The cubic root of 1159001 is about 105.0415859462.

The spelling of 1159001 in words is "one million, one hundred fifty-nine thousand, one".