1330541 has 2 divisors, whose sum is σ = 1330542. Its totient is φ = 1330540.

The previous prime is 1330529. The next prime is 1330547. The reversal of 1330541 is 1450331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 958441 + 372100 = 979^2 + 610^2 .

It is an emirp because it is prime and its reverse (1450331) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1330541 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1330547) 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 as a sum of consecutive naturals, namely, 665270 + 665271.

It is an arithmetic number, because the mean of its divisors is an integer number (665271).

2^1330541 is an apocalyptic number.

It is an amenable number.

1330541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1330541 is an equidigital number, since it uses as much as digits as its factorization.

1330541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 1330541 is about 1153.4907888666. The cubic root of 1330541 is about 109.9873539181.

Adding to 1330541 its reverse (1450331), we get a palindrome (2780872).

The spelling of 1330541 in words is "one million, three hundred thirty thousand, five hundred forty-one".