1328057 has 4 divisors (see below), whose sum is σ = 1406196. Its totient is φ = 1249920.

The previous prime is 1328051. The next prime is 1328077. The reversal of 1328057 is 7508231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7508231 = 31 ⋅242201.

It can be written as a sum of positive squares in 2 ways, for example, as 891136 + 436921 = 944^2 + 661^2 .

It is a cyclic number.

It is not a de Polignac number, because 1328057 - 2⁸ = 1327801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1328051) 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, 39044 + ... + 39077.

It is an arithmetic number, because the mean of its divisors is an integer number (351549).

2^1328057 is an apocalyptic number.

1328057 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1328057 is a deficient number, since it is larger than the sum of its proper divisors (78139).

1328057 is an equidigital number, since it uses as much as digits as its factorization.

1328057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78138.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 1328057 is about 1152.4135542417. The cubic root of 1328057 is about 109.9188657913.

The spelling of 1328057 in words is "one million, three hundred twenty-eight thousand, fifty-seven".