218674061 has 8 divisors (see below), whose sum is σ = 220806144. Its totient is φ = 216548640.

The previous prime is 218674019. The next prime is 218674063. The reversal of 218674061 is 160476812.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-218674061 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218674063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85481 + ... + 88001.

It is an arithmetic number, because the mean of its divisors is an integer number (27600768).

Almost surely, 2^218674061 is an apocalyptic number.

It is an amenable number.

218674061 is a deficient number, since it is larger than the sum of its proper divisors (2132083).

218674061 is a wasteful number, since it uses less digits than its factorization.

218674061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3331.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 218674061 is about 14787.6320281511. The cubic root of 218674061 is about 602.4658346242.

The spelling of 218674061 in words is "two hundred eighteen million, six hundred seventy-four thousand, sixty-one".