1312417 has 4 divisors (see below), whose sum is σ = 1389636. Its totient is φ = 1235200.

The previous prime is 1312411. The next prime is 1312459. The reversal of 1312417 is 7142131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7142131 = 683 ⋅10457.

It can be written as a sum of positive squares in 2 ways, for example, as 467856 + 844561 = 684^2 + 919^2 .

It is a cyclic number.

It is not a de Polignac number, because 1312417 - 2¹¹ = 1310369 is a prime.

It is a Duffinian number.

1312417 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1312394 and 1312403.

It is not an unprimeable number, because it can be changed into a prime (1312411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38584 + ... + 38617.

It is an arithmetic number, because the mean of its divisors is an integer number (347409).

2^1312417 is an apocalyptic number.

1312417 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1312417 is a deficient number, since it is larger than the sum of its proper divisors (77219).

1312417 is an equidigital number, since it uses as much as digits as its factorization.

1312417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77218.

The product of its digits is 168, while the sum is 19.

The square root of 1312417 is about 1145.6076989965. The cubic root of 1312417 is about 109.4856705115.

Adding to 1312417 its reverse (7142131), we get a palindrome (8454548).

The spelling of 1312417 in words is "one million, three hundred twelve thousand, four hundred seventeen".