1312567 has 2 divisors, whose sum is σ = 1312568. Its totient is φ = 1312566.

The previous prime is 1312561. The next prime is 1312579. The reversal of 1312567 is 7652131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1312567 - 2³ = 1312559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656283 + 656284.

It is an arithmetic number, because the mean of its divisors is an integer number (656284).

2^1312567 is an apocalyptic number.

1312567 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312567 is an equidigital number, since it uses as much as digits as its factorization.

1312567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1260, while the sum is 25.

The square root of 1312567 is about 1145.6731645631. The cubic root of 1312567 is about 109.4898414990.

Adding to 1312567 its reverse (7652131), we get a palindrome (8964698).

The spelling of 1312567 in words is "one million, three hundred twelve thousand, five hundred sixty-seven".