1331371 has 4 divisors (see below), whose sum is σ = 1367392. Its totient is φ = 1295352.

The previous prime is 1331347. The next prime is 1331377. The reversal of 1331371 is 1731331.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1331371 - 2⁵ = 1331339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1331377) 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, 17955 + ... + 18028.

It is an arithmetic number, because the mean of its divisors is an integer number (341848).

2^1331371 is an apocalyptic number.

1331371 is a deficient number, since it is larger than the sum of its proper divisors (36021).

1331371 is an equidigital number, since it uses as much as digits as its factorization.

1331371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36020.

The product of its digits is 189, while the sum is 19.

The square root of 1331371 is about 1153.8505102482. The cubic root of 1331371 is about 110.0102194362.

The spelling of 1331371 in words is "one million, three hundred thirty-one thousand, three hundred seventy-one".