154730911481 has 2 divisors, whose sum is σ = 154730911482. Its totient is φ = 154730911480.

The previous prime is 154730911469. The next prime is 154730911487. The reversal of 154730911481 is 184119037451.

154730911481 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., 139415611456 + 15315300025 = 373384^2 + 123755^2 .

It is an emirp because it is prime and its reverse (184119037451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 154730911481 - 2¹⁴ = 154730895097 is a prime.

It is a super-2 number, since 2×154730911481² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (154730911487) 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, 77365455740 + 77365455741.

It is an arithmetic number, because the mean of its divisors is an integer number (77365455741).

Almost surely, 2^154730911481 is an apocalyptic number.

It is an amenable number.

154730911481 is a deficient number, since it is larger than the sum of its proper divisors (1).

154730911481 is an equidigital number, since it uses as much as digits as its factorization.

154730911481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 44.

The spelling of 154730911481 in words is "one hundred fifty-four billion, seven hundred thirty million, nine hundred eleven thousand, four hundred eighty-one".