1530073 has 2 divisors, whose sum is σ = 1530074. Its totient is φ = 1530072.

The previous prime is 1530071. The next prime is 1530077. The reversal of 1530073 is 3700351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1408969 + 121104 = 1187^2 + 348^2 .

It is a cyclic number.

It is not a de Polignac number, because 1530073 - 2¹ = 1530071 is a prime.

It is a super-2 number, since 2×1530073² = 4682246770658, which contains 22 as substring.

Together with 1530071, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1530073.

It is not a weakly prime, because it can be changed into another prime (1530071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 765036 + 765037.

It is an arithmetic number, because the mean of its divisors is an integer number (765037).

2^1530073 is an apocalyptic number.

It is an amenable number.

1530073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1530073 is an equidigital number, since it uses as much as digits as its factorization.

1530073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 315, while the sum is 19.

The square root of 1530073 is about 1236.9611958344. The cubic root of 1530073 is about 115.2313678486.

The spelling of 1530073 in words is "one million, five hundred thirty thousand, seventy-three".