1521444112 has 40 divisors (see below), whose sum is σ = 3088123776. Its totient is φ = 724770816.

The previous prime is 1521444083. The next prime is 1521444131. The reversal of 1521444112 is 2114441251.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86533 + ... + 102619.

Almost surely, 2^1521444112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1521444112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1544061888).

1521444112 is an abundant number, since it is smaller than the sum of its proper divisors (1566679664).

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

1521444112 is a wasteful number, since it uses less digits than its factorization.

1521444112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16375 (or 16369 counting only the distinct ones).

The product of its digits is 1280, while the sum is 25.

The square root of 1521444112 is about 39005.6933280258. The cubic root of 1521444112 is about 1150.1434255898.

Adding to 1521444112 its reverse (2114441251), we get a palindrome (3635885363).

The spelling of 1521444112 in words is "one billion, five hundred twenty-one million, four hundred forty-four thousand, one hundred twelve".