218141049 has 16 divisors (see below), whose sum is σ = 333864320. Its totient is φ = 124104960.

The previous prime is 218141029. The next prime is 218141081. The reversal of 218141049 is 940141812.

It is not a de Polignac number, because 218141049 - 2¹⁷ = 218009977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (218141029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17872 + ... + 27489.

It is an arithmetic number, because the mean of its divisors is an integer number (20866520).

Almost surely, 2^218141049 is an apocalyptic number.

It is an amenable number.

218141049 is a deficient number, since it is larger than the sum of its proper divisors (115723271).

218141049 is a wasteful number, since it uses less digits than its factorization.

218141049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45600.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 218141049 is about 14769.5988097172. The cubic root of 218141049 is about 601.9759384135.

The spelling of 218141049 in words is "two hundred eighteen million, one hundred forty-one thousand, forty-nine".