1531941288953 has 2 divisors, whose sum is σ = 1531941288954. Its totient is φ = 1531941288952.

The previous prime is 1531941288937. The next prime is 1531941288961. The reversal of 1531941288953 is 3598821491351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1103115385849 + 428825903104 = 1050293^2 + 654848^2 .

It is an emirp because it is prime and its reverse (3598821491351) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1531941288953 - 2⁴ = 1531941288937 is a prime.

It is a super-2 number, since 2×1531941288953² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1531941288892 and 1531941288901.

It is not a weakly prime, because it can be changed into another prime (1531941288253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 765970644476 + 765970644477.

It is an arithmetic number, because the mean of its divisors is an integer number (765970644477).

Almost surely, 2^{1531941288953} is an apocalyptic number.

It is an amenable number.

1531941288953 is a deficient number, since it is larger than the sum of its proper divisors (1).

1531941288953 is an equidigital number, since it uses as much as digits as its factorization.

1531941288953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9331200, while the sum is 59.

The spelling of 1531941288953 in words is "one trillion, five hundred thirty-one billion, nine hundred forty-one million, two hundred eighty-eight thousand, nine hundred fifty-three".