1306471 has 4 divisors (see below), whose sum is σ = 1324944. Its totient is φ = 1288000.

The previous prime is 1306451. The next prime is 1306477. The reversal of 1306471 is 1746031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1746031 = 7 ⋅249433.

It is a cyclic number.

It is not a de Polignac number, because 1306471 - 2⁵ = 1306439 is a prime.

It is a super-3 number, since 3×1306471³ = 6689914646836575333, which contains 333 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 (1306477) 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, 9130 + ... + 9271.

It is an arithmetic number, because the mean of its divisors is an integer number (331236).

2^1306471 is an apocalyptic number.

1306471 is a deficient number, since it is larger than the sum of its proper divisors (18473).

1306471 is an equidigital number, since it uses as much as digits as its factorization.

1306471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18472.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 1306471 is about 1143.0096237565. The cubic root of 1306471 is about 109.3200759340.

Subtracting from 1306471 its sum of digits (22), we obtain a square (1306449 = 1143²).

The spelling of 1306471 in words is "one million, three hundred six thousand, four hundred seventy-one".