1313452553437 has 2 divisors, whose sum is σ = 1313452553438. Its totient is φ = 1313452553436.

The previous prime is 1313452553401. The next prime is 1313452553477. The reversal of 1313452553437 is 7343552543131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1213322077081 + 100130476356 = 1101509^2 + 316434^2 .

It is a cyclic number.

It is not a de Polignac number, because 1313452553437 - 2²³ = 1313444164829 is a prime.

It is a super-2 number, since 2×1313452553437² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1313452553477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656726276718 + 656726276719.

It is an arithmetic number, because the mean of its divisors is an integer number (656726276719).

Almost surely, 2^{1313452553437} is an apocalyptic number.

It is an amenable number.

1313452553437 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313452553437 is an equidigital number, since it uses as much as digits as its factorization.

1313452553437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2268000, while the sum is 46.

The spelling of 1313452553437 in words is "one trillion, three hundred thirteen billion, four hundred fifty-two million, five hundred fifty-three thousand, four hundred thirty-seven".