3121144452 has 72 divisors (see below), whose sum is σ = 7956318552. Its totient is φ = 1031616000.

The previous prime is 3121144447. The next prime is 3121144489. The reversal of 3121144452 is 2544411213.

3121144452 is a `hidden beast` number, since 3 + 1 + 211 + 4 + 445 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 165482496 + 2955661956 = 12864^2 + 54366^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3915718 + ... + 3916514.

Almost surely, 2^3121144452 is an apocalyptic number.

It is an amenable number.

3121144452 is an abundant number, since it is smaller than the sum of its proper divisors (4835174100).

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

3121144452 is a wasteful number, since it uses less digits than its factorization.

3121144452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1589 (or 1584 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 3121144452 is about 55867.2037245467. The cubic root of 3121144452 is about 1461.4073581558.

Adding to 3121144452 its reverse (2544411213), we get a palindrome (5665555665).

The spelling of 3121144452 in words is "three billion, one hundred twenty-one million, one hundred forty-four thousand, four hundred fifty-two".