3121525441 has 2 divisors, whose sum is σ = 3121525442. Its totient is φ = 3121525440.

The previous prime is 3121525427. The next prime is 3121525481. The reversal of 3121525441 is 1445251213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2553179841 + 568345600 = 50529^2 + 23840^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3121525441 is a prime.

It is not a weakly prime, because it can be changed into another prime (3121525481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560762720 + 1560762721.

It is an arithmetic number, because the mean of its divisors is an integer number (1560762721).

Almost surely, 2^3121525441 is an apocalyptic number.

It is an amenable number.

3121525441 is a deficient number, since it is larger than the sum of its proper divisors (1).

3121525441 is an equidigital number, since it uses as much as digits as its factorization.

3121525441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4800, while the sum is 28.

The square root of 3121525441 is about 55870.6133938048. The cubic root of 3121525441 is about 1461.4668189811.

Adding to 3121525441 its reverse (1445251213), we get a palindrome (4566776654).

The spelling of 3121525441 in words is "three billion, one hundred twenty-one million, five hundred twenty-five thousand, four hundred forty-one".