148909724857 has 2 divisors, whose sum is σ = 148909724858. Its totient is φ = 148909724856.

The previous prime is 148909724807. The next prime is 148909724861. The reversal of 148909724857 is 758427909841.

148909724857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131579582121 + 17330142736 = 362739^2 + 131644^2 .

It is a cyclic number.

It is not a de Polignac number, because 148909724857 - 2⁷ = 148909724729 is a prime.

It is not a weakly prime, because it can be changed into another prime (148909724807) 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, 74454862428 + 74454862429.

It is an arithmetic number, because the mean of its divisors is an integer number (74454862429).

Almost surely, 2^148909724857 is an apocalyptic number.

It is an amenable number.

148909724857 is a deficient number, since it is larger than the sum of its proper divisors (1).

148909724857 is an equidigital number, since it uses as much as digits as its factorization.

148909724857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40642560, while the sum is 64.

The spelling of 148909724857 in words is "one hundred forty-eight billion, nine hundred nine million, seven hundred twenty-four thousand, eight hundred fifty-seven".