154205542421323 has 8 divisors (see below), whose sum is σ = 159630109264800. Its totient is φ = 148788117867648.

The previous prime is 154205542421191. The next prime is 154205542421327. The reversal of 154205542421323 is 323124245502451.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 154205542421323 - 2³⁷ = 154068103467851 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 154205542421323.

It is not an unprimeable number, because it can be changed into a prime (154205542421327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1785528511 + ... + 1785614872.

It is an arithmetic number, because the mean of its divisors is an integer number (19953763658100).

Almost surely, 2^{154205542421323} is an apocalyptic number.

154205542421323 is a deficient number, since it is larger than the sum of its proper divisors (5424566843477).

154205542421323 is a wasteful number, since it uses less digits than its factorization.

154205542421323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3571144901.

The product of its (nonzero) digits is 1152000, while the sum is 43.

Adding to 154205542421323 its reverse (323124245502451), we get a palindrome (477329787923774).

The spelling of 154205542421323 in words is "one hundred fifty-four trillion, two hundred five billion, five hundred forty-two million, four hundred twenty-one thousand, three hundred twenty-three".