13914122561 has 2 divisors, whose sum is σ = 13914122562. Its totient is φ = 13914122560.

The previous prime is 13914122543. The next prime is 13914122569. The reversal of 13914122561 is 16522141931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10080160000 + 3833962561 = 100400^2 + 61919^2 .

It is a cyclic number.

It is not a de Polignac number, because 13914122561 - 2¹⁰ = 13914121537 is a prime.

It is a super-3 number, since 3×13914122561³ (a number of 31 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (13914122569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6957061280 + 6957061281.

It is an arithmetic number, because the mean of its divisors is an integer number (6957061281).

Almost surely, 2^13914122561 is an apocalyptic number.

It is an amenable number.

13914122561 is a deficient number, since it is larger than the sum of its proper divisors (1).

13914122561 is an equidigital number, since it uses as much as digits as its factorization.

13914122561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 35.

The spelling of 13914122561 in words is "thirteen billion, nine hundred fourteen million, one hundred twenty-two thousand, five hundred sixty-one".