1290533 has 2 divisors, whose sum is σ = 1290534. Its totient is φ = 1290532.

The previous prime is 1290503. The next prime is 1290539. The reversal of 1290533 is 3350921.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 702244 + 588289 = 838^2 + 767^2 .

It is a cyclic number.

It is not a de Polignac number, because 1290533 - 2⁶ = 1290469 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1290499 and 1290508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1290539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 645266 + 645267.

It is an arithmetic number, because the mean of its divisors is an integer number (645267).

2^1290533 is an apocalyptic number.

It is an amenable number.

1290533 is a deficient number, since it is larger than the sum of its proper divisors (1).

1290533 is an equidigital number, since it uses as much as digits as its factorization.

1290533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 1290533 is about 1136.0162850945. The cubic root of 1290533 is about 108.8737139681.

The spelling of 1290533 in words is "one million, two hundred ninety thousand, five hundred thirty-three".