1530311 has 2 divisors, whose sum is σ = 1530312. Its totient is φ = 1530310.

The previous prime is 1530293. The next prime is 1530313. The reversal of 1530311 is 1130351.

It is a strong prime.

It is an emirp because it is prime and its reverse (1130351) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1530311 - 2¹⁴ = 1513927 is a prime.

It is a Sophie Germain prime.

Together with 1530313, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1530313) 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, 765155 + 765156.

It is an arithmetic number, because the mean of its divisors is an integer number (765156).

2^1530311 is an apocalyptic number.

1530311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1530311 is an equidigital number, since it uses as much as digits as its factorization.

1530311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45, while the sum is 14.

The square root of 1530311 is about 1237.0573955965. The cubic root of 1530311 is about 115.2373422136.

Adding to 1530311 its reverse (1130351), we get a palindrome (2660662).

The spelling of 1530311 in words is "one million, five hundred thirty thousand, three hundred eleven".