14993562181 has 4 divisors (see below), whose sum is σ = 16146913132. Its totient is φ = 13840211232.

The previous prime is 14993562149. The next prime is 14993562187. The reversal of 14993562181 is 18126539941.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18126539941 = 25951 ⋅698491.

It can be written as a sum of positive squares in 2 ways, for example, as 2923024225 + 12070537956 = 54065^2 + 109866^2 .

It is a cyclic number.

It is not a de Polignac number, because 14993562181 - 2⁵ = 14993562149 is a prime.

It is a super-2 number, since 2×14993562181² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14993562187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 576675456 + ... + 576675481.

It is an arithmetic number, because the mean of its divisors is an integer number (4036728283).

Almost surely, 2^14993562181 is an apocalyptic number.

It is an amenable number.

14993562181 is a deficient number, since it is larger than the sum of its proper divisors (1153350951).

14993562181 is a wasteful number, since it uses less digits than its factorization.

14993562181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1153350950.

The product of its digits is 466560, while the sum is 49.

The spelling of 14993562181 in words is "fourteen billion, nine hundred ninety-three million, five hundred sixty-two thousand, one hundred eighty-one".