1530215 has 8 divisors (see below), whose sum is σ = 1843008. Its totient is φ = 1219680.

The previous prime is 1530197. The next prime is 1530227. The reversal of 1530215 is 5120351.

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

It is not a de Polignac number, because 1530215 - 2¹⁰ = 1529191 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1530193 and 1530202.

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 7 ways as a sum of consecutive naturals, for example, 1985 + ... + 2645.

It is an arithmetic number, because the mean of its divisors is an integer number (230376).

2^1530215 is an apocalyptic number.

1530215 is a deficient number, since it is larger than the sum of its proper divisors (312793).

1530215 is an equidigital number, since it uses as much as digits as its factorization.

1530215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 1530215 is about 1237.0185932313. The cubic root of 1530215 is about 115.2349324602.

Adding to 1530215 its reverse (5120351), we get a palindrome (6650566).

The spelling of 1530215 in words is "one million, five hundred thirty thousand, two hundred fifteen".