1150665 has 16 divisors (see below), whose sum is σ = 1886976. Its totient is φ = 598400.

The previous prime is 1150661. The next prime is 1150673. The reversal of 1150665 is 5660511.

It is not a de Polignac number, because 1150665 - 2² = 1150661 is a prime.

1150665 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1150661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 321 + ... + 1550.

It is an arithmetic number, because the mean of its divisors is an integer number (117936).

2^1150665 is an apocalyptic number.

1150665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1150665 is a deficient number, since it is larger than the sum of its proper divisors (736311).

1150665 is a wasteful number, since it uses less digits than its factorization.

1150665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1920.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 1150665 is about 1072.6905425145. The cubic root of 1150665 is about 104.7891460216.

The spelling of 1150665 in words is "one million, one hundred fifty thousand, six hundred sixty-five".