1129666 has 8 divisors (see below), whose sum is σ = 1753020. Its totient is φ = 545328.

The previous prime is 1129663. The next prime is 1129679. The reversal of 1129666 is 6669211.

It can be written as a sum of positive squares in 2 ways, for example, as 1113025 + 16641 = 1055^2 + 129^2 .

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

It is a super-2 number, since 2×1129666² = 2552290543112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1129663) 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, 9681 + ... + 9796.

2^1129666 is an apocalyptic number.

1129666 is a deficient number, since it is larger than the sum of its proper divisors (623354).

1129666 is a wasteful number, since it uses less digits than its factorization.

1129666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19508.

The product of its digits is 3888, while the sum is 31.

The square root of 1129666 is about 1062.8574692780. The cubic root of 1129666 is about 104.1477805405.

The spelling of 1129666 in words is "one million, one hundred twenty-nine thousand, six hundred sixty-six".