218059061 has 16 divisors (see below), whose sum is σ = 241489728. Its totient is φ = 196881520.

The previous prime is 218059031. The next prime is 218059073. The reversal of 218059061 is 160950812.

It is a de Polignac number, because none of the positive numbers 2^k-218059061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218059001) by changing a digit.

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, 229790 + ... + 230736.

It is an arithmetic number, because the mean of its divisors is an integer number (15093108).

Almost surely, 2^218059061 is an apocalyptic number.

It is an amenable number.

218059061 is a deficient number, since it is larger than the sum of its proper divisors (23430667).

218059061 is an equidigital number, since it uses as much as digits as its factorization.

218059061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1153 (or 1131 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 218059061 is about 14766.8229826188. The cubic root of 218059061 is about 601.9005116990.

Subtracting from 218059061 its reverse (160950812), we obtain a square (57108249 = 7557²).

The spelling of 218059061 in words is "two hundred eighteen million, fifty-nine thousand, sixty-one".