1530020215 has 16 divisors (see below), whose sum is σ = 1856416320. Its totient is φ = 1210451200.

The previous prime is 1530020203. The next prime is 1530020227. The reversal of 1530020215 is 5120200351.

It is an interprime number because it is at equal distance from previous prime (1530020203) and next prime (1530020227).

It is not a de Polignac number, because 1530020215 - 2⁵ = 1530020183 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1530020192 and 1530020201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 664947 + ... + 667243.

It is an arithmetic number, because the mean of its divisors is an integer number (116026020).

Almost surely, 2^1530020215 is an apocalyptic number.

1530020215 is a deficient number, since it is larger than the sum of its proper divisors (326396105).

1530020215 is a wasteful number, since it uses less digits than its factorization.

1530020215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3722.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 1530020215 is about 39115.4728336499. The cubic root of 1530020215 is about 1152.3004273581.

Adding to 1530020215 its reverse (5120200351), we get a palindrome (6650220566).

The spelling of 1530020215 in words is "one billion, five hundred thirty million, twenty thousand, two hundred fifteen".