1530513 has 6 divisors (see below), whose sum is σ = 2210754. Its totient is φ = 1020336.

The previous prime is 1530511. The next prime is 1530517. The reversal of 1530513 is 3150351.

It is a happy number.

1530513 is a `hidden beast` number, since 153 + 0 + 513 = 666.

It can be written as a sum of positive squares in only one way, i.e., 804609 + 725904 = 897^2 + 852^2 .

It is not a de Polignac number, because 1530513 - 2¹ = 1530511 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1530511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 85020 + ... + 85037.

It is an arithmetic number, because the mean of its divisors is an integer number (368459).

2^1530513 is an apocalyptic number.

It is an amenable number.

1530513 is a deficient number, since it is larger than the sum of its proper divisors (680241).

1530513 is a wasteful number, since it uses less digits than its factorization.

1530513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170063 (or 170060 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 18.

The square root of 1530513 is about 1237.1390382653. The cubic root of 1530513 is about 115.2424124071.

Adding to 1530513 its reverse (3150351), we get a palindrome (4680864).

The spelling of 1530513 in words is "one million, five hundred thirty thousand, five hundred thirteen".