1530541 has 2 divisors, whose sum is σ = 1530542. Its totient is φ = 1530540.

The previous prime is 1530539. The next prime is 1530553. The reversal of 1530541 is 1450351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1144900 + 385641 = 1070^2 + 621^2 .

It is a cyclic number.

It is not a de Polignac number, because 1530541 - 2¹ = 1530539 is a prime.

Together with 1530539, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1530511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 765270 + 765271.

It is an arithmetic number, because the mean of its divisors is an integer number (765271).

2^1530541 is an apocalyptic number.

It is an amenable number.

1530541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1530541 is an equidigital number, since it uses as much as digits as its factorization.

1530541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 1530541 is about 1237.1503546457. The cubic root of 1530541 is about 115.2431151710.

Adding to 1530541 its reverse (1450351), we get a palindrome (2980892).

The spelling of 1530541 in words is "one million, five hundred thirty thousand, five hundred forty-one".