149481539485841 has 2 divisors, whose sum is σ = 149481539485842. Its totient is φ = 149481539485840.

The previous prime is 149481539485823. The next prime is 149481539485847. The reversal of 149481539485841 is 148584935184941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139137854340241 + 10343685145600 = 11795671^2 + 3216160^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149481539485841 is a prime.

It is not a weakly prime, because it can be changed into another prime (149481539485847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74740769742920 + 74740769742921.

It is an arithmetic number, because the mean of its divisors is an integer number (74740769742921).

Almost surely, 2^{149481539485841} is an apocalyptic number.

It is an amenable number.

149481539485841 is a deficient number, since it is larger than the sum of its proper divisors (1).

149481539485841 is an equidigital number, since it uses as much as digits as its factorization.

149481539485841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 796262400, while the sum is 74.

The spelling of 149481539485841 in words is "one hundred forty-nine trillion, four hundred eighty-one billion, five hundred thirty-nine million, four hundred eighty-five thousand, eight hundred forty-one".