13675142453221 has 2 divisors, whose sum is σ = 13675142453222. Its totient is φ = 13675142453220.

The previous prime is 13675142453041. The next prime is 13675142453227. The reversal of 13675142453221 is 12235424157631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7464430516321 + 6210711936900 = 2732111^2 + 2492130^2 .

It is a cyclic number.

It is not a de Polignac number, because 13675142453221 - 2¹⁵ = 13675142420453 is a prime.

It is a super-2 number, since 2×13675142453221² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13675142453227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6837571226610 + 6837571226611.

It is an arithmetic number, because the mean of its divisors is an integer number (6837571226611).

Almost surely, 2^{13675142453221} is an apocalyptic number.

It is an amenable number.

13675142453221 is a deficient number, since it is larger than the sum of its proper divisors (1).

13675142453221 is an equidigital number, since it uses as much as digits as its factorization.

13675142453221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1209600, while the sum is 46.

The spelling of 13675142453221 in words is "thirteen trillion, six hundred seventy-five billion, one hundred forty-two million, four hundred fifty-three thousand, two hundred twenty-one".