1328115 has 16 divisors (see below), whose sum is σ = 2183328. Its totient is φ = 688896.

The previous prime is 1328111. The next prime is 1328143. The reversal of 1328115 is 5118231.

It is not a de Polignac number, because 1328115 - 2² = 1328111 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1328091 and 1328100.

It is not an unprimeable number, because it can be changed into a prime (1328111) 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 15 ways as a sum of consecutive naturals, for example, 642 + ... + 1751.

It is an arithmetic number, because the mean of its divisors is an integer number (136458).

2^1328115 is an apocalyptic number.

1328115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1328115 is a deficient number, since it is larger than the sum of its proper divisors (855213).

1328115 is a wasteful number, since it uses less digits than its factorization.

1328115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2438.

The product of its digits is 240, while the sum is 21.

The square root of 1328115 is about 1152.4387185443. The cubic root of 1328115 is about 109.9204659238.

The spelling of 1328115 in words is "one million, three hundred twenty-eight thousand, one hundred fifteen".