1166458 has 4 divisors (see below), whose sum is σ = 1749690. Its totient is φ = 583228.

The previous prime is 1166453. The next prime is 1166479. The reversal of 1166458 is 8546611.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1151329 + 15129 = 1073^2 + 123^2 .

It is a super-3 number, since 3×1166458³ = 4761333179383631736, which contains 333 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1166453) 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 as a sum of consecutive naturals, namely, 291613 + ... + 291616.

2^1166458 is an apocalyptic number.

1166458 is a deficient number, since it is larger than the sum of its proper divisors (583232).

1166458 is an equidigital number, since it uses as much as digits as its factorization.

1166458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583231.

The product of its digits is 5760, while the sum is 31.

The square root of 1166458 is about 1080.0268515181. The cubic root of 1166458 is about 105.2663833310.

The spelling of 1166458 in words is "one million, one hundred sixty-six thousand, four hundred fifty-eight".