1141665 has 32 divisors (see below), whose sum is σ = 2128896. Its totient is φ = 511680.

The previous prime is 1141661. The next prime is 1141667. The reversal of 1141665 is 5661411.

It is not a de Polignac number, because 1141665 - 2² = 1141661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1141661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8650 + ... + 8780.

It is an arithmetic number, because the mean of its divisors is an integer number (66528).

2^1141665 is an apocalyptic number.

1141665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1141665 is a deficient number, since it is larger than the sum of its proper divisors (987231).

1141665 is a wasteful number, since it uses less digits than its factorization.

1141665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229.

The product of its digits is 720, while the sum is 24.

The square root of 1141665 is about 1068.4872484031. The cubic root of 1141665 is about 104.5152256075.

The spelling of 1141665 in words is "one million, one hundred forty-one thousand, six hundred sixty-five".