135453449899373 has 2 divisors, whose sum is σ = 135453449899374. Its totient is φ = 135453449899372.

The previous prime is 135453449899337. The next prime is 135453449899379. The reversal of 135453449899373 is 373998944354531.

Together with previous prime (135453449899337) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108140095315849 + 27313354583524 = 10399043^2 + 5226218^2 .

It is a cyclic number.

It is not a de Polignac number, because 135453449899373 - 2¹² = 135453449895277 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135453449899294 and 135453449899303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135453449899379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67726724949686 + 67726724949687.

It is an arithmetic number, because the mean of its divisors is an integer number (67726724949687).

Almost surely, 2^{135453449899373} is an apocalyptic number.

It is an amenable number.

135453449899373 is a deficient number, since it is larger than the sum of its proper divisors (1).

135453449899373 is an equidigital number, since it uses as much as digits as its factorization.

135453449899373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5290790400, while the sum is 77.

The spelling of 135453449899373 in words is "one hundred thirty-five trillion, four hundred fifty-three billion, four hundred forty-nine million, eight hundred ninety-nine thousand, three hundred seventy-three".