218272153 has 4 divisors (see below), whose sum is σ = 238115088. Its totient is φ = 198429220.

The previous prime is 218272127. The next prime is 218272193. The reversal of 218272153 is 351272812.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 218272153 - 2¹³ = 218263961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (218272193) 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 3 ways as a sum of consecutive naturals, for example, 9921451 + ... + 9921472.

It is an arithmetic number, because the mean of its divisors is an integer number (59528772).

Almost surely, 2^218272153 is an apocalyptic number.

It is an amenable number.

218272153 is a deficient number, since it is larger than the sum of its proper divisors (19842935).

218272153 is a wasteful number, since it uses less digits than its factorization.

218272153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19842934.

The product of its digits is 6720, while the sum is 31.

The square root of 218272153 is about 14774.0364491225. The cubic root of 218272153 is about 602.0965112391.

The spelling of 218272153 in words is "two hundred eighteen million, two hundred seventy-two thousand, one hundred fifty-three".