243154055 has 16 divisors (see below), whose sum is σ = 300340224. Its totient is φ = 188902560.

The previous prime is 243154033. The next prime is 243154063. The reversal of 243154055 is 550451342.

It is not a de Polignac number, because 243154055 - 2¹⁶ = 243088519 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 18674 + ... + 28896.

It is an arithmetic number, because the mean of its divisors is an integer number (18771264).

Almost surely, 2^243154055 is an apocalyptic number.

243154055 is a deficient number, since it is larger than the sum of its proper divisors (57186169).

243154055 is a wasteful number, since it uses less digits than its factorization.

243154055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10366.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 243154055 is about 15593.3978016339. The cubic root of 243154055 is about 624.1569903802.

The spelling of 243154055 in words is "two hundred forty-three million, one hundred fifty-four thousand, fifty-five".