1351331 has 4 divisors (see below), whose sum is σ = 1357512. Its totient is φ = 1345152.

The previous prime is 1351327. The next prime is 1351373. The reversal of 1351331 is 1331531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1331531 = 359 ⋅3709.

It is a cyclic number.

It is not a de Polignac number, because 1351331 - 2² = 1351327 is a prime.

It is a super-2 number, since 2×1351331² = 3652190943122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1350331) 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 3 ways as a sum of consecutive naturals, for example, 2750 + ... + 3203.

It is an arithmetic number, because the mean of its divisors is an integer number (339378).

2^1351331 is an apocalyptic number.

1351331 is a deficient number, since it is larger than the sum of its proper divisors (6181).

1351331 is an equidigital number, since it uses as much as digits as its factorization.

1351331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6180.

The product of its digits is 135, while the sum is 17.

The square root of 1351331 is about 1162.4676339580. The cubic root of 1351331 is about 110.5572548505.

Adding to 1351331 its reverse (1331531), we get a palindrome (2682862).

The spelling of 1351331 in words is "one million, three hundred fifty-one thousand, three hundred thirty-one".