1361331 has 18 divisors (see below), whose sum is σ = 2080260. Its totient is φ = 857736.

The previous prime is 1361317. The next prime is 1361357. The reversal of 1361331 is 1331631.

It is not a de Polignac number, because 1361331 - 2⁵ = 1361299 is a prime.

It is a super-2 number, since 2×1361331² = 3706444183122, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1361131) 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 17 ways as a sum of consecutive naturals, for example, 3040 + ... + 3458.

It is an arithmetic number, because the mean of its divisors is an integer number (115570).

2^1361331 is an apocalyptic number.

1361331 is a deficient number, since it is larger than the sum of its proper divisors (718929).

1361331 is a wasteful number, since it uses less digits than its factorization.

1361331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463 (or 441 counting only the distinct ones).

The product of its digits is 162, while the sum is 18.

The square root of 1361331 is about 1166.7609009561. The cubic root of 1361331 is about 110.8292969052.

Adding to 1361331 its reverse (1331631), we get a palindrome (2692962).

The spelling of 1361331 in words is "one million, three hundred sixty-one thousand, three hundred thirty-one".