1331447052 has 24 divisors (see below), whose sum is σ = 3345687856. Its totient is φ = 409675968.

The previous prime is 1331447011. The next prime is 1331447063. The reversal of 1331447052 is 2507441331.

It is a happy number.

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, 4267303 + ... + 4267614.

Almost surely, 2^1331447052 is an apocalyptic number.

1331447052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1331447052 is an abundant number, since it is smaller than the sum of its proper divisors (2014240804).

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

1331447052 is a wasteful number, since it uses less digits than its factorization.

1331447052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8534937 (or 8534935 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 1331447052 is about 36488.9990545096. Note that the first 3 decimals coincide. The cubic root of 1331447052 is about 1100.1231410352.

Adding to 1331447052 its reverse (2507441331), we get a palindrome (3838888383).

The spelling of 1331447052 in words is "one billion, three hundred thirty-one million, four hundred forty-seven thousand, fifty-two".