1530803 has 2 divisors, whose sum is σ = 1530804. Its totient is φ = 1530802.

The previous prime is 1530791. The next prime is 1530827. The reversal of 1530803 is 3080351.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1530803 - 2²⁰ = 482227 is a prime.

It is not a weakly prime, because it can be changed into another prime (1530853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 765401 + 765402.

It is an arithmetic number, because the mean of its divisors is an integer number (765402).

2^1530803 is an apocalyptic number.

1530803 is a deficient number, since it is larger than the sum of its proper divisors (1).

1530803 is an equidigital number, since it uses as much as digits as its factorization.

1530803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1530803 is about 1237.2562386183. The cubic root of 1530803 is about 115.2496906180.

The spelling of 1530803 in words is "one million, five hundred thirty thousand, eight hundred three".