154021356241 has 4 divisors (see below), whose sum is σ = 154065861684. Its totient is φ = 153976850800.

The previous prime is 154021356239. The next prime is 154021356323. The reversal of 154021356241 is 142653120451.

154021356241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 48178494016 + 105842862225 = 219496^2 + 325335^2 .

It is a cyclic number.

It is not a de Polignac number, because 154021356241 - 2¹ = 154021356239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 154021356197 and 154021356206.

It is not an unprimeable number, because it can be changed into a prime (154021356641) 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 3 ways as a sum of consecutive naturals, for example, 22247530 + ... + 22254451.

It is an arithmetic number, because the mean of its divisors is an integer number (38516465421).

Almost surely, 2^154021356241 is an apocalyptic number.

It is an amenable number.

154021356241 is a deficient number, since it is larger than the sum of its proper divisors (44505443).

154021356241 is an equidigital number, since it uses as much as digits as its factorization.

154021356241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44505442.

The product of its (nonzero) digits is 28800, while the sum is 34.

Adding to 154021356241 its reverse (142653120451), we get a palindrome (296674476692).

The spelling of 154021356241 in words is "one hundred fifty-four billion, twenty-one million, three hundred fifty-six thousand, two hundred forty-one".