154000015540 has 144 divisors (see below), whose sum is σ = 386825048064. Its totient is φ = 51318489600.

The previous prime is 154000015501. The next prime is 154000015567. The reversal of 154000015540 is 45510000451.

It is a happy number.

154000015540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 10881709 + ... + 10895851.

It is an arithmetic number, because the mean of its divisors is an integer number (2686285056).

Almost surely, 2^154000015540 is an apocalyptic number.

154000015540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154000015540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193412524032).

154000015540 is an abundant number, since it is smaller than the sum of its proper divisors (232825032524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

154000015540 is a wasteful number, since it uses less digits than its factorization.

154000015540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14478 (or 14469 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

Adding to 154000015540 its reverse (45510000451), we get a palindrome (199510015991).

The spelling of 154000015540 in words is "one hundred fifty-four billion, fifteen thousand, five hundred forty".