154542548161 has 9 divisors (see below), whose sum is σ = 155205419043. Its totient is φ = 153882501360.

The previous prime is 154542548119. The next prime is 154542548201. The reversal of 154542548161 is 161845245451.

It is a happy number.

The square root of 154542548161 is 393119.

It is a perfect power (a square), and thus also a powerful number.

154542548161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 104438202561 + 50104345600 = 323169^2 + 223840^2 .

It is not a de Polignac number, because 154542548161 - 2¹⁹ = 154542023873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154542548561) 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 in 8 ways as a sum of consecutive naturals, for example, 110465740 + ... + 110467138.

Almost surely, 2^154542548161 is an apocalyptic number.

154542548161 is the 393119-th square number.

154542548161 is the 196560-th centered octagonal number.

It is an amenable number.

154542548161 is a deficient number, since it is larger than the sum of its proper divisors (662870882).

154542548161 is an frugal number, since it uses more digits than its factorization.

154542548161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3360 (or 1680 counting only the distinct ones).

The product of its digits is 768000, while the sum is 46.

The spelling of 154542548161 in words is "one hundred fifty-four billion, five hundred forty-two million, five hundred forty-eight thousand, one hundred sixty-one".