1135121 has 4 divisors (see below), whose sum is σ = 1222452. Its totient is φ = 1047792.

The previous prime is 1135111. The next prime is 1135129. The reversal of 1135121 is 1215311.

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 211600 + 923521 = 460^2 + 961^2 .

It is a cyclic number.

It is not a de Polignac number, because 1135121 - 2¹⁴ = 1118737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1135096 and 1135105.

It is not an unprimeable number, because it can be changed into a prime (1135129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43646 + ... + 43671.

It is an arithmetic number, because the mean of its divisors is an integer number (305613).

2^1135121 is an apocalyptic number.

It is an amenable number.

1135121 is a deficient number, since it is larger than the sum of its proper divisors (87331).

1135121 is an equidigital number, since it uses as much as digits as its factorization.

1135121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87330.

The product of its digits is 30, while the sum is 14.

The square root of 1135121 is about 1065.4205742335. The cubic root of 1135121 is about 104.3151498103.

The spelling of 1135121 in words is "one million, one hundred thirty-five thousand, one hundred twenty-one".