1141765 has 4 divisors (see below), whose sum is σ = 1370124. Its totient is φ = 913408.

The previous prime is 1141757. The next prime is 1141769. The reversal of 1141765 is 5671411.

It is a happy number.

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 770884 + 370881 = 878^2 + 609^2 .

It is a cyclic number.

It is not a de Polignac number, because 1141765 - 2³ = 1141757 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 (1141769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114172 + ... + 114181.

It is an arithmetic number, because the mean of its divisors is an integer number (342531).

2^1141765 is an apocalyptic number.

It is an amenable number.

1141765 is a deficient number, since it is larger than the sum of its proper divisors (228359).

1141765 is an equidigital number, since it uses as much as digits as its factorization.

1141765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228358.

The product of its digits is 840, while the sum is 25.

The square root of 1141765 is about 1068.5340425087. The cubic root of 1141765 is about 104.5182770623.

The spelling of 1141765 in words is "one million, one hundred forty-one thousand, seven hundred sixty-five".