1530145215 has 32 divisors (see below), whose sum is σ = 2786616000. Its totient is φ = 796170240.

The previous prime is 1530145193. The next prime is 1530145277. The reversal of 1530145215 is 5125410351.

It is not a de Polignac number, because 1530145215 - 2¹⁵ = 1530112447 is a prime.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132690 + ... + 143759.

It is an arithmetic number, because the mean of its divisors is an integer number (87081750).

Almost surely, 2^1530145215 is an apocalyptic number.

1530145215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1530145215 is a deficient number, since it is larger than the sum of its proper divisors (1256470785).

1530145215 is a wasteful number, since it uses less digits than its factorization.

1530145215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276504 (or 276498 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 1530145215 is about 39117.0706341873. The cubic root of 1530145215 is about 1152.3318068196.

Adding to 1530145215 its reverse (5125410351), we get a palindrome (6655555566).

It can be divided in two parts, 15301 and 45215, that added together give a square (60516 = 246²).

The spelling of 1530145215 in words is "one billion, five hundred thirty million, one hundred forty-five thousand, two hundred fifteen".