1331241 has 8 divisors (see below), whose sum is σ = 1780704. Its totient is φ = 884640.

The previous prime is 1331227. The next prime is 1331243. The reversal of 1331241 is 1421331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1331241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1331241.

It is not an unprimeable number, because it can be changed into a prime (1331243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 886 + ... + 1856.

It is an arithmetic number, because the mean of its divisors is an integer number (222588).

2^1331241 is an apocalyptic number.

It is an amenable number.

1331241 is a deficient number, since it is larger than the sum of its proper divisors (449463).

1331241 is an equidigital number, since it uses as much as digits as its factorization.

1331241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431.

The product of its digits is 72, while the sum is 15.

The square root of 1331241 is about 1153.7941757523. The cubic root of 1331241 is about 110.0066387178.

Adding to 1331241 its reverse (1421331), we get a palindrome (2752572).

The spelling of 1331241 in words is "one million, three hundred thirty-one thousand, two hundred forty-one".