1530212015 has 4 divisors (see below), whose sum is σ = 1836254424. Its totient is φ = 1224169608.

The previous prime is 1530212009. The next prime is 1530212027. The reversal of 1530212015 is 5102120351.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5102120351 = 337 ⋅15139823.

It is a cyclic number.

It is not a de Polignac number, because 1530212015 - 2¹⁶ = 1530146479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153021197 + ... + 153021206.

It is an arithmetic number, because the mean of its divisors is an integer number (459063606).

Almost surely, 2^1530212015 is an apocalyptic number.

1530212015 is a deficient number, since it is larger than the sum of its proper divisors (306042409).

1530212015 is an equidigital number, since it uses as much as digits as its factorization.

1530212015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306042408.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 1530212015 is about 39117.9244720371. The cubic root of 1530212015 is about 1152.3485753031.

Adding to 1530212015 its reverse (5102120351), we get a palindrome (6632332366).

The spelling of 1530212015 in words is "one billion, five hundred thirty million, two hundred twelve thousand, fifteen".