1328013 has 6 divisors (see below), whose sum is σ = 1918254. Its totient is φ = 885336.

The previous prime is 1328003. The next prime is 1328017. The reversal of 1328013 is 3108231.

It can be written as a sum of positive squares in only one way, i.e., 915849 + 412164 = 957^2 + 642^2 .

It is not a de Polignac number, because 1328013 - 2¹⁰ = 1326989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73770 + ... + 73787.

It is an arithmetic number, because the mean of its divisors is an integer number (319709).

2^1328013 is an apocalyptic number.

It is an amenable number.

1328013 is a deficient number, since it is larger than the sum of its proper divisors (590241).

1328013 is a wasteful number, since it uses less digits than its factorization.

1328013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147563 (or 147560 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1328013 is about 1152.3944637146. The cubic root of 1328013 is about 109.9176518666.

The spelling of 1328013 in words is "one million, three hundred twenty-eight thousand, thirteen".