1166745 has 8 divisors (see below), whose sum is σ = 1866816. Its totient is φ = 622256.

The previous prime is 1166741. The next prime is 1166773. The reversal of 1166745 is 5476611.

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

It is a cyclic number.

It is not a de Polignac number, because 1166745 - 2² = 1166741 is a prime.

It is a super-2 number, since 2×1166745² = 2722587790050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1166741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38877 + ... + 38906.

It is an arithmetic number, because the mean of its divisors is an integer number (233352).

2^1166745 is an apocalyptic number.

1166745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1166745 is a deficient number, since it is larger than the sum of its proper divisors (700071).

1166745 is an equidigital number, since it uses as much as digits as its factorization.

1166745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77791.

The product of its digits is 5040, while the sum is 30.

The square root of 1166745 is about 1080.1597104132. The cubic root of 1166745 is about 105.2750160106.

The spelling of 1166745 in words is "one million, one hundred sixty-six thousand, seven hundred forty-five".