1353891444173 has 2 divisors, whose sum is σ = 1353891444174. Its totient is φ = 1353891444172.

The previous prime is 1353891444149. The next prime is 1353891444203. The reversal of 1353891444173 is 3714441983531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1173315740809 + 180575703364 = 1083197^2 + 424942^2 .

It is a cyclic number.

It is not a de Polignac number, because 1353891444173 - 2²⁰ = 1353890395597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1353891443173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 676945722086 + 676945722087.

It is an arithmetic number, because the mean of its divisors is an integer number (676945722087).

Almost surely, 2^{1353891444173} is an apocalyptic number.

It is an amenable number.

1353891444173 is a deficient number, since it is larger than the sum of its proper divisors (1).

1353891444173 is an equidigital number, since it uses as much as digits as its factorization.

1353891444173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4354560, while the sum is 53.

The spelling of 1353891444173 in words is "one trillion, three hundred fifty-three billion, eight hundred ninety-one million, four hundred forty-four thousand, one hundred seventy-three".