148971065489 has 2 divisors, whose sum is σ = 148971065490. Its totient is φ = 148971065488.

The previous prime is 148971065447. The next prime is 148971065521. The reversal of 148971065489 is 984560179841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145771240000 + 3199825489 = 381800^2 + 56567^2 .

It is a cyclic number.

It is not a de Polignac number, because 148971065489 - 2²⁰ = 148970016913 is a prime.

It is not a weakly prime, because it can be changed into another prime (148971067489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74485532744 + 74485532745.

It is an arithmetic number, because the mean of its divisors is an integer number (74485532745).

Almost surely, 2^148971065489 is an apocalyptic number.

It is an amenable number.

148971065489 is a deficient number, since it is larger than the sum of its proper divisors (1).

148971065489 is an equidigital number, since it uses as much as digits as its factorization.

148971065489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17418240, while the sum is 62.

The spelling of 148971065489 in words is "one hundred forty-eight billion, nine hundred seventy-one million, sixty-five thousand, four hundred eighty-nine".