154120241 has 6 divisors (see below), whose sum is σ = 169405026. Its totient is φ = 140109200.

The previous prime is 154120201. The next prime is 154120259. The reversal of 154120241 is 142021451.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 151782400 + 2337841 = 12320^2 + 1529^2 .

It is not a de Polignac number, because 154120241 - 2⁶ = 154120177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154120201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 636740 + ... + 636981.

It is an arithmetic number, because the mean of its divisors is an integer number (28234171).

Almost surely, 2^154120241 is an apocalyptic number.

154120241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

154120241 is a deficient number, since it is larger than the sum of its proper divisors (15284785).

154120241 is a wasteful number, since it uses less digits than its factorization.

154120241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1273743 (or 1273732 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 154120241 is about 12414.5173486527. The cubic root of 154120241 is about 536.1503080074.

Adding to 154120241 its reverse (142021451), we get a palindrome (296141692).

The spelling of 154120241 in words is "one hundred fifty-four million, one hundred twenty thousand, two hundred forty-one".