1135541 has 4 divisors (see below), whose sum is σ = 1238784. Its totient is φ = 1032300.

The previous prime is 1135531. The next prime is 1135597. The reversal of 1135541 is 1455311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1135541 - 2¹⁰ = 1134517 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1135531) 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, 51605 + ... + 51626.

It is an arithmetic number, because the mean of its divisors is an integer number (309696).

2^1135541 is an apocalyptic number.

1135541 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1135541 is a deficient number, since it is larger than the sum of its proper divisors (103243).

1135541 is a wasteful number, since it uses less digits than its factorization.

1135541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103242.

The product of its digits is 300, while the sum is 20.

The square root of 1135541 is about 1065.6176612651. The cubic root of 1135541 is about 104.3280139192.

The spelling of 1135541 in words is "one million, one hundred thirty-five thousand, five hundred forty-one".