1321471 has 8 divisors (see below), whose sum is σ = 1368864. Its totient is φ = 1274880.

The previous prime is 1321459. The next prime is 1321477. The reversal of 1321471 is 1741231.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1321471 is a prime.

It is a super-3 number, since 3×1321471³ = 6922997349580110333, which contains 333 as substring.

It is an Ulam number.

It is a Duffinian number.

1321471 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6751 + ... + 6943.

It is an arithmetic number, because the mean of its divisors is an integer number (171108).

2^1321471 is an apocalyptic number.

1321471 is a deficient number, since it is larger than the sum of its proper divisors (47393).

1321471 is a wasteful number, since it uses less digits than its factorization.

1321471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401.

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

The square root of 1321471 is about 1149.5525216361. The cubic root of 1321471 is about 109.7368641560.

The spelling of 1321471 in words is "one million, three hundred twenty-one thousand, four hundred seventy-one".