1159013 has 4 divisors (see below), whose sum is σ = 1162188. Its totient is φ = 1155840.

The previous prime is 1159007. The next prime is 1159027. The reversal of 1159013 is 3109511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 465124 + 693889 = 682^2 + 833^2 .

It is a cyclic number.

It is not a de Polignac number, because 1159013 - 2⁸ = 1158757 is a prime.

It is a super-2 number, since 2×1159013² = 2686622268338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1159063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 956 + ... + 1797.

It is an arithmetic number, because the mean of its divisors is an integer number (290547).

2^1159013 is an apocalyptic number.

It is an amenable number.

1159013 is a deficient number, since it is larger than the sum of its proper divisors (3175).

1159013 is an equidigital number, since it uses as much as digits as its factorization.

1159013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3174.

The product of its (nonzero) digits is 135, while the sum is 20.

The square root of 1159013 is about 1076.5746606715. The cubic root of 1159013 is about 105.0419484695.

The spelling of 1159013 in words is "one million, one hundred fifty-nine thousand, thirteen".