1329413 has 4 divisors (see below), whose sum is σ = 1332780. Its totient is φ = 1326048.

The previous prime is 1329407. The next prime is 1329437. The reversal of 1329413 is 3149231.

1329413 is nontrivially palindromic in base 8.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3149231 = 19 ⋅165749.

It can be written as a sum of positive squares in 2 ways, for example, as 1151329 + 178084 = 1073^2 + 422^2 .

It is a cyclic number.

It is not a de Polignac number, because 1329413 - 2⁴ = 1329397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1329313) 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, 998 + ... + 1911.

It is an arithmetic number, because the mean of its divisors is an integer number (333195).

2^1329413 is an apocalyptic number.

It is an amenable number.

1329413 is a deficient number, since it is larger than the sum of its proper divisors (3367).

1329413 is an equidigital number, since it uses as much as digits as its factorization.

1329413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3366.

The product of its digits is 648, while the sum is 23.

The square root of 1329413 is about 1153.0017346041. The cubic root of 1329413 is about 109.9562636043.

The spelling of 1329413 in words is "one million, three hundred twenty-nine thousand, four hundred thirteen".