1312017 has 8 divisors (see below), whose sum is σ = 1999296. Its totient is φ = 749712.

The previous prime is 1312001. The next prime is 1312019. The reversal of 1312017 is 7102131.

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

It is not a de Polignac number, because 1312017 - 2⁴ = 1312001 is a prime.

1312017 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1311987 and 1312005.

It is not an unprimeable number, because it can be changed into a prime (1312019) 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, 31218 + ... + 31259.

It is an arithmetic number, because the mean of its divisors is an integer number (249912).

2^1312017 is an apocalyptic number.

It is an amenable number.

1312017 is a deficient number, since it is larger than the sum of its proper divisors (687279).

1312017 is an equidigital number, since it uses as much as digits as its factorization.

1312017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62487.

The product of its (nonzero) digits is 42, while the sum is 15.

The square root of 1312017 is about 1145.4331058600. The cubic root of 1312017 is about 109.4745463240.

Adding to 1312017 its reverse (7102131), we get a palindrome (8414148).

The spelling of 1312017 in words is "one million, three hundred twelve thousand, seventeen".