154131243055 has 4 divisors (see below), whose sum is σ = 184957491672. Its totient is φ = 123304994440.

The previous prime is 154131243023. The next prime is 154131243067. The reversal of 154131243055 is 550342131451.

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

It is not a de Polignac number, because 154131243055 - 2⁵ = 154131243023 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 154131243055.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15413124301 + ... + 15413124310.

It is an arithmetic number, because the mean of its divisors is an integer number (46239372918).

Almost surely, 2^154131243055 is an apocalyptic number.

154131243055 is a deficient number, since it is larger than the sum of its proper divisors (30826248617).

154131243055 is an equidigital number, since it uses as much as digits as its factorization.

154131243055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30826248616.

The product of its (nonzero) digits is 36000, while the sum is 34.

The spelling of 154131243055 in words is "one hundred fifty-four billion, one hundred thirty-one million, two hundred forty-three thousand, fifty-five".