1149665 has 8 divisors (see below), whose sum is σ = 1505088. Its totient is φ = 836080.

The previous prime is 1149661. The next prime is 1149679. The reversal of 1149665 is 5669411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1149665 - 2² = 1149661 is a prime.

It is a super-2 number, since 2×1149665² = 2643459224450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1149661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10397 + ... + 10506.

It is an arithmetic number, because the mean of its divisors is an integer number (188136).

2^1149665 is an apocalyptic number.

It is an amenable number.

1149665 is a deficient number, since it is larger than the sum of its proper divisors (355423).

1149665 is a wasteful number, since it uses less digits than its factorization.

1149665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20919.

The product of its digits is 6480, while the sum is 32.

The square root of 1149665 is about 1072.2243235443. The cubic root of 1149665 is about 104.7587811118.

It can be divided in two parts, 114 and 9665, that added together give a palindrome (9779).

The spelling of 1149665 in words is "one million, one hundred forty-nine thousand, six hundred sixty-five".