1312166 has 8 divisors (see below), whose sum is σ = 1974024. Its totient is φ = 654160.

The previous prime is 1312153. The next prime is 1312169. The reversal of 1312166 is 6612131.

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

It is a super-2 number, since 2×1312166² = 3443559223112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312169) 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, 146 + ... + 1626.

It is an arithmetic number, because the mean of its divisors is an integer number (246753).

2^1312166 is an apocalyptic number.

1312166 is a deficient number, since it is larger than the sum of its proper divisors (661858).

1312166 is a wasteful number, since it uses less digits than its factorization.

1312166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1926.

The product of its digits is 216, while the sum is 20.

The square root of 1312166 is about 1145.4981449134. The cubic root of 1312166 is about 109.4786903481.

Adding to 1312166 its reverse (6612131), we get a palindrome (7924297).

The spelling of 1312166 in words is "one million, three hundred twelve thousand, one hundred sixty-six".