1331041 has 2 divisors, whose sum is σ = 1331042. Its totient is φ = 1331040.

The previous prime is 1331039. The next prime is 1331051. The reversal of 1331041 is 1401331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1218816 + 112225 = 1104^2 + 335^2 .

It is a cyclic number.

It is not a de Polignac number, because 1331041 - 2¹ = 1331039 is a prime.

Together with 1331039, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1331051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665520 + 665521.

It is an arithmetic number, because the mean of its divisors is an integer number (665521).

2^1331041 is an apocalyptic number.

It is an amenable number.

1331041 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331041 is an equidigital number, since it uses as much as digits as its factorization.

1331041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1331041 is about 1153.7075019259. The cubic root of 1331041 is about 110.0011294650.

Adding to 1331041 its reverse (1401331), we get a palindrome (2732372).

The spelling of 1331041 in words is "one million, three hundred thirty-one thousand, forty-one".