18241119137 has 2 divisors, whose sum is σ = 18241119138. Its totient is φ = 18241119136.

The previous prime is 18241119109. The next prime is 18241119173. The reversal of 18241119137 is 73191114281.

Together with next prime (18241119173) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18091326016 + 149793121 = 134504^2 + 12239^2 .

It is a cyclic number.

It is not a de Polignac number, because 18241119137 - 2⁶ = 18241119073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18241119137.

It is not a weakly prime, because it can be changed into another prime (18241119037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9120559568 + 9120559569.

It is an arithmetic number, because the mean of its divisors is an integer number (9120559569).

Almost surely, 2^18241119137 is an apocalyptic number.

It is an amenable number.

18241119137 is a deficient number, since it is larger than the sum of its proper divisors (1).

18241119137 is an equidigital number, since it uses as much as digits as its factorization.

18241119137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 38.

The spelling of 18241119137 in words is "eighteen billion, two hundred forty-one million, one hundred nineteen thousand, one hundred thirty-seven".