154045004321 has 4 divisors (see below), whose sum is σ = 165894620052. Its totient is φ = 142195388592.

The previous prime is 154045004287. The next prime is 154045004339. The reversal of 154045004321 is 123400540451.

154045004321 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, and also an emirpimes, since its reverse is a distinct semiprime: 123400540451 = 71 ⋅1738035781.

It can be written as a sum of positive squares in 2 ways, for example, as 86283187600 + 67761816721 = 293740^2 + 260311^2 .

It is a cyclic number.

It is not a de Polignac number, because 154045004321 - 2¹⁸ = 154044742177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154045004381) 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, 5924807846 + ... + 5924807871.

It is an arithmetic number, because the mean of its divisors is an integer number (41473655013).

Almost surely, 2^154045004321 is an apocalyptic number.

It is an amenable number.

154045004321 is a deficient number, since it is larger than the sum of its proper divisors (11849615731).

154045004321 is a wasteful number, since it uses less digits than its factorization.

154045004321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11849615730.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 154045004321 its reverse (123400540451), we get a palindrome (277445544772).

The spelling of 154045004321 in words is "one hundred fifty-four billion, forty-five million, four thousand, three hundred twenty-one".