148478121697 has 2 divisors, whose sum is σ = 148478121698. Its totient is φ = 148478121696.

The previous prime is 148478121667. The next prime is 148478121793. The reversal of 148478121697 is 796121874841.

148478121697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103226621521 + 45251500176 = 321289^2 + 212724^2 .

It is a cyclic number.

It is not a de Polignac number, because 148478121697 - 2¹¹ = 148478119649 is a prime.

It is not a weakly prime, because it can be changed into another prime (148478121667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74239060848 + 74239060849.

It is an arithmetic number, because the mean of its divisors is an integer number (74239060849).

Almost surely, 2^148478121697 is an apocalyptic number.

It is an amenable number.

148478121697 is a deficient number, since it is larger than the sum of its proper divisors (1).

148478121697 is an equidigital number, since it uses as much as digits as its factorization.

148478121697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5419008, while the sum is 58.

The spelling of 148478121697 in words is "one hundred forty-eight billion, four hundred seventy-eight million, one hundred twenty-one thousand, six hundred ninety-seven".