1530113520 has 80 divisors (see below), whose sum is σ = 5108235552. Its totient is φ = 376642560.

The previous prime is 1530113483. The next prime is 1530113521. The reversal of 1530113520 is 253110351.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-3 number, since 3×1530113520³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1530113521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 242091 + ... + 248330.

Almost surely, 2^1530113520 is an apocalyptic number.

1530113520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1530113520 is an abundant number, since it is smaller than the sum of its proper divisors (3578122032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1530113520 is a wasteful number, since it uses less digits than its factorization.

1530113520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490450 (or 490444 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 1530113520 is about 39116.6655020593. The cubic root of 1530113520 is about 1152.3238504051.

Adding to 1530113520 its reverse (253110351), we get a palindrome (1783223871).

The spelling of 1530113520 in words is "one billion, five hundred thirty million, one hundred thirteen thousand, five hundred twenty".