218084153 has 6 divisors (see below), whose sum is σ = 253689786. Its totient is φ = 186929232.

The previous prime is 218084099. The next prime is 218084173. The reversal of 218084153 is 351480812.

It can be written as a sum of positive squares in only one way, i.e., 191324224 + 26759929 = 13832^2 + 5173^2 .

It is not a de Polignac number, because 218084153 - 2¹⁶ = 218018617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (218084173) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 2225300 + ... + 2225397.

It is an arithmetic number, because the mean of its divisors is an integer number (42281631).

Almost surely, 2^218084153 is an apocalyptic number.

It is an amenable number.

218084153 is a deficient number, since it is larger than the sum of its proper divisors (35605633).

218084153 is an equidigital number, since it uses as much as digits as its factorization.

218084153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4450711 (or 4450704 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 218084153 is about 14767.6725654383. The cubic root of 218084153 is about 601.9235976592.

The spelling of 218084153 in words is "two hundred eighteen million, eighty-four thousand, one hundred fifty-three".