1331313552 has 30 divisors (see below), whose sum is σ = 3725829302. Its totient is φ = 443771136.

The previous prime is 1331313547. The next prime is 1331313553. The reversal of 1331313552 is 2553131331.

1331313552 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 796594176 + 534719376 = 28224^2 + 23124^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331313553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4622473 + ... + 4622760.

Almost surely, 2^1331313552 is an apocalyptic number.

1331313552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1331313552 is an abundant number, since it is smaller than the sum of its proper divisors (2394515750).

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

1331313552 is a wasteful number, since it uses less digits than its factorization.

1331313552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9245247 (or 9245238 counting only the distinct ones).

The product of its digits is 4050, while the sum is 27.

The square root of 1331313552 is about 36487.1696901801. The cubic root of 1331313552 is about 1100.0863711795.

Adding to 1331313552 its reverse (2553131331), we get a palindrome (3884444883).

The spelling of 1331313552 in words is "one billion, three hundred thirty-one million, three hundred thirteen thousand, five hundred fifty-two".