1165133 has 4 divisors (see below), whose sum is σ = 1205340. Its totient is φ = 1124928.

The previous prime is 1165127. The next prime is 1165139. The reversal of 1165133 is 3315611.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (1165127) and next prime (1165139).

It can be written as a sum of positive squares in 2 ways, for example, as 896809 + 268324 = 947^2 + 518^2 .

It is a cyclic number.

It is not a de Polignac number, because 1165133 - 2⁶ = 1165069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20060 + ... + 20117.

It is an arithmetic number, because the mean of its divisors is an integer number (301335).

2^1165133 is an apocalyptic number.

It is an amenable number.

1165133 is a deficient number, since it is larger than the sum of its proper divisors (40207).

1165133 is an equidigital number, since it uses as much as digits as its factorization.

1165133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40206.

The product of its digits is 270, while the sum is 20.

The square root of 1165133 is about 1079.4132665481. The cubic root of 1165133 is about 105.2265102557.

It can be divided in two parts, 11651 and 33, that multiplied together give a palindrome (384483).

The spelling of 1165133 in words is "one million, one hundred sixty-five thousand, one hundred thirty-three".