1531941514073 has 2 divisors, whose sum is σ = 1531941514074. Its totient is φ = 1531941514072.

The previous prime is 1531941514069. The next prime is 1531941514097. The reversal of 1531941514073 is 3704151491351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1312142758144 + 219798755929 = 1145488^2 + 468827^2 .

It is an emirp because it is prime and its reverse (3704151491351) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1531941514073 - 2² = 1531941514069 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1531941514043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 765970757036 + 765970757037.

It is an arithmetic number, because the mean of its divisors is an integer number (765970757037).

Almost surely, 2^{1531941514073} is an apocalyptic number.

It is an amenable number.

1531941514073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1531941514073 is an equidigital number, since it uses as much as digits as its factorization.

1531941514073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 226800, while the sum is 44.

The spelling of 1531941514073 in words is "one trillion, five hundred thirty-one billion, nine hundred forty-one million, five hundred fourteen thousand, seventy-three".