154420428161 has 2 divisors, whose sum is σ = 154420428162. Its totient is φ = 154420428160.

The previous prime is 154420428139. The next prime is 154420428167. The reversal of 154420428161 is 161824024451.

154420428161 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., 130913712400 + 23506715761 = 361820^2 + 153319^2 .

It is a cyclic number.

It is not a de Polignac number, because 154420428161 - 2¹⁰ = 154420427137 is a prime.

It is not a weakly prime, because it can be changed into another prime (154420428167) 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, 77210214080 + 77210214081.

It is an arithmetic number, because the mean of its divisors is an integer number (77210214081).

Almost surely, 2^154420428161 is an apocalyptic number.

It is an amenable number.

154420428161 is a deficient number, since it is larger than the sum of its proper divisors (1).

154420428161 is an equidigital number, since it uses as much as digits as its factorization.

154420428161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61440, while the sum is 38.

The spelling of 154420428161 in words is "one hundred fifty-four billion, four hundred twenty million, four hundred twenty-eight thousand, one hundred sixty-one".