1534531120 has 20 divisors (see below), whose sum is σ = 3567785040. Its totient is φ = 613812416.

The previous prime is 1534531087. The next prime is 1534531127. The reversal of 1534531120 is 211354351.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (1534531127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9590740 + ... + 9590899.

It is an arithmetic number, because the mean of its divisors is an integer number (178389252).

Almost surely, 2^1534531120 is an apocalyptic number.

1534531120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1534531120 is an abundant number, since it is smaller than the sum of its proper divisors (2033253920).

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

1534531120 is a wasteful number, since it uses less digits than its factorization.

1534531120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19181652 (or 19181646 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1534531120 is about 39173.0917850506. The cubic root of 1534531120 is about 1153.4317452713.

Adding to 1534531120 its reverse (211354351), we get a palindrome (1745885471).

The spelling of 1534531120 in words is "one billion, five hundred thirty-four million, five hundred thirty-one thousand, one hundred twenty".