154352161549 has 2 divisors, whose sum is σ = 154352161550. Its totient is φ = 154352161548.

The previous prime is 154352161501. The next prime is 154352161553. The reversal of 154352161549 is 945161253451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143967124900 + 10385036649 = 379430^2 + 101907^2 .

It is a cyclic number.

It is not a de Polignac number, because 154352161549 - 2¹¹ = 154352159501 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 154352161499 and 154352161508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154352111549) 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, 77176080774 + 77176080775.

It is an arithmetic number, because the mean of its divisors is an integer number (77176080775).

Almost surely, 2^154352161549 is an apocalyptic number.

It is an amenable number.

154352161549 is a deficient number, since it is larger than the sum of its proper divisors (1).

154352161549 is an equidigital number, since it uses as much as digits as its factorization.

154352161549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648000, while the sum is 46.

The spelling of 154352161549 in words is "one hundred fifty-four billion, three hundred fifty-two million, one hundred sixty-one thousand, five hundred forty-nine".