1530564 has 72 divisors (see below), whose sum is σ = 4404960. Its totient is φ = 411264.

The previous prime is 1530559. The next prime is 1530569. The reversal of 1530564 is 4650351.

It is an interprime number because it is at equal distance from previous prime (1530559) and next prime (1530569).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1530569) 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 23 ways as a sum of consecutive naturals, for example, 11104 + ... + 11240.

It is an arithmetic number, because the mean of its divisors is an integer number (61180).

2^1530564 is an apocalyptic number.

1530564 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1530564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2202480).

1530564 is an abundant number, since it is smaller than the sum of its proper divisors (2874396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1530564 is a wasteful number, since it uses less digits than its factorization.

1530564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 1530564 is about 1237.1596501665. The cubic root of 1530564 is about 115.2436924350.

The spelling of 1530564 in words is "one million, five hundred thirty thousand, five hundred sixty-four".