1310666 has 16 divisors (see below), whose sum is σ = 2379456. Its totient is φ = 528576.

The previous prime is 1310657. The next prime is 1310669. The reversal of 1310666 is 6660131.

It is not an unprimeable number, because it can be changed into a prime (1310669) 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, 2516 + ... + 2991.

It is an arithmetic number, because the mean of its divisors is an integer number (148716).

2^1310666 is an apocalyptic number.

1310666 is a deficient number, since it is larger than the sum of its proper divisors (1068790).

1310666 is a wasteful number, since it uses less digits than its factorization.

1310666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5533.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1310666 is about 1144.8432207075. The cubic root of 1310666 is about 109.4369576581.

Adding to 1310666 its reverse (6660131), we get a palindrome (7970797).

It can be divided in two parts, 131066 and 6, that added together give a 17-th power (131072 = 2¹⁷).

The spelling of 1310666 in words is "one million, three hundred ten thousand, six hundred sixty-six".