1012666 has 4 divisors (see below), whose sum is σ = 1519002. Its totient is φ = 506332.

The previous prime is 1012663. The next prime is 1012679. The reversal of 1012666 is 6662101.

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., 783225 + 229441 = 885^2 + 479^2 .

It is a Smith number, since the sum of its digits (22) 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 (1012663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253165 + ... + 253168.

2^1012666 is an apocalyptic number.

1012666 is a deficient number, since it is larger than the sum of its proper divisors (506336).

1012666 is an equidigital number, since it uses as much as digits as its factorization.

1012666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506335.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1012666 is about 1006.3130725574. The cubic root of 1012666 is about 100.4204299097.

Adding to 1012666 its reverse (6662101), we get a palindrome (7674767).

The spelling of 1012666 in words is "one million, twelve thousand, six hundred sixty-six".