1331875 has 10 divisors (see below), whose sum is σ = 1665092. Its totient is φ = 1065000.

The previous prime is 1331857. The next prime is 1331921. The reversal of 1331875 is 5781331.

It is a de Polignac number, because none of the positive numbers 2^k-1331875 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 441 + ... + 1690.

2^1331875 is an apocalyptic number.

1331875 is a deficient number, since it is larger than the sum of its proper divisors (333217).

1331875 is an frugal number, since it uses more digits than its factorization.

1331875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2151 (or 2136 counting only the distinct ones).

The product of its digits is 2520, while the sum is 28.

The square root of 1331875 is about 1154.0688887584. The cubic root of 1331875 is about 110.0240994030.

The spelling of 1331875 in words is "one million, three hundred thirty-one thousand, eight hundred seventy-five".