1301533 has 2 divisors, whose sum is σ = 1301534. Its totient is φ = 1301532.

The previous prime is 1301527. The next prime is 1301539. The reversal of 1301533 is 3351031.

It is a balanced prime because it is at equal distance from previous prime (1301527) and next prime (1301539).

It can be written as a sum of positive squares in only one way, i.e., 1044484 + 257049 = 1022^2 + 507^2 .

It is a cyclic number.

It is not a de Polignac number, because 1301533 - 2⁹ = 1301021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1301539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650766 + 650767.

It is an arithmetic number, because the mean of its divisors is an integer number (650767).

2^1301533 is an apocalyptic number.

It is an amenable number.

1301533 is a deficient number, since it is larger than the sum of its proper divisors (1).

1301533 is an equidigital number, since it uses as much as digits as its factorization.

1301533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 135, while the sum is 16.

The square root of 1301533 is about 1140.8474919988. The cubic root of 1301533 is about 109.1821715897.

Adding to 1301533 its reverse (3351031), we get a palindrome (4652564).

The spelling of 1301533 in words is "one million, three hundred one thousand, five hundred thirty-three".