1530531120 has 80 divisors (see below), whose sum is σ = 4779381600. Its totient is φ = 405153792.

The previous prime is 1530531061. The next prime is 1530531133. The reversal of 1530531120 is 211350351.

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

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, 9606 + ... + 56154.

It is an arithmetic number, because the mean of its divisors is an integer number (59742270).

Almost surely, 2^1530531120 is an apocalyptic number.

1530531120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1530531120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2389690800).

1530531120 is an abundant number, since it is smaller than the sum of its proper divisors (3248850480).

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

1530531120 is a wasteful number, since it uses less digits than its factorization.

1530531120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46702 (or 46696 counting only the distinct ones).

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

The square root of 1530531120 is about 39122.0030162056. The cubic root of 1530531120 is about 1152.4286719674.

Adding to 1530531120 its reverse (211350351), we get a palindrome (1741881471).

The spelling of 1530531120 in words is "one billion, five hundred thirty million, five hundred thirty-one thousand, one hundred twenty".