1530565 has 8 divisors (see below), whose sum is σ = 1843488. Its totient is φ = 1219920.

The previous prime is 1530559. The next prime is 1530569. The reversal of 1530565 is 5650351.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1530565 - 2¹⁷ = 1399493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1530569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1870 + ... + 2560.

It is an arithmetic number, because the mean of its divisors is an integer number (230436).

2^1530565 is an apocalyptic number.

It is an amenable number.

1530565 is a deficient number, since it is larger than the sum of its proper divisors (312923).

1530565 is an equidigital number, since it uses as much as digits as its factorization.

1530565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 1530565 is about 1237.1600543180. The cubic root of 1530565 is about 115.2437175333.

The spelling of 1530565 in words is "one million, five hundred thirty thousand, five hundred sixty-five".