1312167 has 4 divisors (see below), whose sum is σ = 1749560. Its totient is φ = 874776.

The previous prime is 1312153. The next prime is 1312169. The reversal of 1312167 is 7612131.

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

It is not a de Polignac number, because 1312167 - 2¹⁰ = 1311143 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

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, 218692 + ... + 218697.

It is an arithmetic number, because the mean of its divisors is an integer number (437390).

2^1312167 is an apocalyptic number.

1312167 is a deficient number, since it is larger than the sum of its proper divisors (437393).

1312167 is an equidigital number, since it uses as much as digits as its factorization.

1312167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437392.

The product of its digits is 252, while the sum is 21.

The square root of 1312167 is about 1145.4985814046. The cubic root of 1312167 is about 109.4787181592.

Adding to 1312167 its reverse (7612131), we get a palindrome (8924298).

The spelling of 1312167 in words is "one million, three hundred twelve thousand, one hundred sixty-seven".