1521062116 has 72 divisors (see below), whose sum is σ = 3191795712. Its totient is φ = 632016000.

The previous prime is 1521062113. The next prime is 1521062159. The reversal of 1521062116 is 6112601251.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1521062111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1534381 + ... + 1535371.

It is an arithmetic number, because the mean of its divisors is an integer number (44330496).

Almost surely, 2^1521062116 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 1521062116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1595897856).

1521062116 is an abundant number, since it is smaller than the sum of its proper divisors (1670733596).

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

1521062116 is a wasteful number, since it uses less digits than its factorization.

1521062116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241 (or 1232 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 1521062116 is about 39000.7963508439. The cubic root of 1521062116 is about 1150.0471602588.

Adding to 1521062116 its reverse (6112601251), we get a palindrome (7633663367).

The spelling of 1521062116 in words is "one billion, five hundred twenty-one million, sixty-two thousand, one hundred sixteen".