3031581252 has 144 divisors (see below), whose sum is σ = 8587313280. Its totient is φ = 815284224.

The previous prime is 3031581239. The next prime is 3031581257. The reversal of 3031581252 is 2521851303.

It is not an unprimeable number, because it can be changed into a prime (3031581257) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7793074 + ... + 7793462.

It is an arithmetic number, because the mean of its divisors is an integer number (59634120).

Almost surely, 2^3031581252 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 3031581252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4293656640).

3031581252 is an abundant number, since it is smaller than the sum of its proper divisors (5555732028).

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

3031581252 is a wasteful number, since it uses less digits than its factorization.

3031581252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698 (or 677 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 3031581252 is about 55059.7970573812. The cubic root of 3031581252 is about 1447.2928087504.

The spelling of 3031581252 in words is "three billion, thirty-one million, five hundred eighty-one thousand, two hundred fifty-two".