1530765 has 64 divisors (see below), whose sum is σ = 3110400. Its totient is φ = 709632.

The previous prime is 1530721. The next prime is 1530779. The reversal of 1530765 is 5670351.

It is not a de Polignac number, because 1530765 - 2¹⁰ = 1529741 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

1530765 is a lucky number.

It is a congruent number.

It is an unprimeable number.

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 in 63 ways as a sum of consecutive naturals, for example, 52771 + ... + 52799.

It is an arithmetic number, because the mean of its divisors is an integer number (48600).

2^1530765 is an apocalyptic number.

1530765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1530765 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

1530765 is a wasteful number, since it uses less digits than its factorization.

1530765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 27.

The square root of 1530765 is about 1237.2408819628. The cubic root of 1530765 is about 115.2487369737.

The spelling of 1530765 in words is "one million, five hundred thirty thousand, seven hundred sixty-five".