1135665 has 12 divisors (see below), whose sum is σ = 1968564. Its totient is φ = 605664.

The previous prime is 1135663. The next prime is 1135699. The reversal of 1135665 is 5665311.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 651249 + 484416 = 807^2 + 696^2 .

It is not a de Polignac number, because 1135665 - 2¹ = 1135663 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1135663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12574 + ... + 12663.

It is an arithmetic number, because the mean of its divisors is an integer number (164047).

2^1135665 is an apocalyptic number.

1135665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1135665 is a deficient number, since it is larger than the sum of its proper divisors (832899).

1135665 is a wasteful number, since it uses less digits than its factorization.

1135665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25248 (or 25245 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

The square root of 1135665 is about 1065.6758418956. The cubic root of 1135665 is about 104.3318112877.

It can be divided in two parts, 113 and 5665, that added together give a triangular number (5778 = T₁₀₇).

The spelling of 1135665 in words is "one million, one hundred thirty-five thousand, six hundred sixty-five".