1312471 has 2 divisors, whose sum is σ = 1312472. Its totient is φ = 1312470.

The previous prime is 1312459. The next prime is 1312513. The reversal of 1312471 is 1742131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1312471 - 2⁷ = 1312343 is a prime.

It is a super-3 number, since 3×1312471³ = 6782509381027989333, which contains 333 as substring.

It is equal to p₁₀₀₉₀₉ and since 1312471 and 100909 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656235 + 656236.

It is an arithmetic number, because the mean of its divisors is an integer number (656236).

2^1312471 is an apocalyptic number.

1312471 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312471 is an equidigital number, since it uses as much as digits as its factorization.

1312471 is an evil number, because the sum of its binary digits is even.

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

The square root of 1312471 is about 1145.6312670314. The cubic root of 1312471 is about 109.4871721036.

The spelling of 1312471 in words is "one million, three hundred twelve thousand, four hundred seventy-one".