1328061 has 8 divisors (see below), whose sum is σ = 2023744. Its totient is φ = 758880.

The previous prime is 1328051. The next prime is 1328077. The reversal of 1328061 is 1608231.

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

It is not a de Polignac number, because 1328061 - 2⁷ = 1327933 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 63241 = 1328061 / (1 + 3 + 2 + 8 + 0 + 6 + 1).

It is a Duffinian number.

1328061 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31600 + ... + 31641.

It is an arithmetic number, because the mean of its divisors is an integer number (252968).

2^1328061 is an apocalyptic number.

It is an amenable number.

1328061 is a deficient number, since it is larger than the sum of its proper divisors (695683).

1328061 is an equidigital number, since it uses as much as digits as its factorization.

1328061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63251.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 1328061 is about 1152.4152897285. The cubic root of 1328061 is about 109.9189761467.

The spelling of 1328061 in words is "one million, three hundred twenty-eight thousand, sixty-one".