14500987181 has 2 divisors, whose sum is σ = 14500987182. Its totient is φ = 14500987180.

The previous prime is 14500987177. The next prime is 14500987217. The reversal of 14500987181 is 18178900541.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13859175625 + 641811556 = 117725^2 + 25334^2 .

It is a cyclic number.

It is not a de Polignac number, because 14500987181 - 2² = 14500987177 is a prime.

It is a super-2 number, since 2×14500987181² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14500917181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7250493590 + 7250493591.

It is an arithmetic number, because the mean of its divisors is an integer number (7250493591).

Almost surely, 2^14500987181 is an apocalyptic number.

It is an amenable number.

14500987181 is a deficient number, since it is larger than the sum of its proper divisors (1).

14500987181 is an equidigital number, since it uses as much as digits as its factorization.

14500987181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 44.

The spelling of 14500987181 in words is "fourteen billion, five hundred million, nine hundred eighty-seven thousand, one hundred eighty-one".