1140165 has 24 divisors (see below), whose sum is σ = 2129400. Its totient is φ = 561024.

The previous prime is 1140163. The next prime is 1140197. The reversal of 1140165 is 5610411.

It can be written as a sum of positive squares in 4 ways, for example, as 93636 + 1046529 = 306^2 + 1023^2 .

It is not a de Polignac number, because 1140165 - 2¹ = 1140163 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140163) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 390 + ... + 1559.

It is an arithmetic number, because the mean of its divisors is an integer number (88725).

2^1140165 is an apocalyptic number.

1140165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1140165 is a deficient number, since it is larger than the sum of its proper divisors (989235).

1140165 is a wasteful number, since it uses less digits than its factorization.

1140165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1973 (or 1970 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1140165 is about 1067.7850907369. The cubic root of 1140165 is about 104.4694323879.

Adding to 1140165 its reverse (5610411), we get a palindrome (6750576).

The spelling of 1140165 in words is "one million, one hundred forty thousand, one hundred sixty-five".