218260134 has 12 divisors (see below), whose sum is σ = 472896996. Its totient is φ = 72753372.

The previous prime is 218260123. The next prime is 218260169. The reversal of 218260134 is 431062812.

218260134 is a `hidden beast` number, since 21 + 8 + 2 + 601 + 34 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 218260098 and 218260107.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 6062764 + ... + 6062799.

It is an arithmetic number, because the mean of its divisors is an integer number (39408083).

Almost surely, 2^218260134 is an apocalyptic number.

218260134 is an abundant number, since it is smaller than the sum of its proper divisors (254636862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

218260134 is a wasteful number, since it uses less digits than its factorization.

218260134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12125571 (or 12125568 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 218260134 is about 14773.6296826474. The cubic root of 218260134 is about 602.0854596983.

The spelling of 218260134 in words is "two hundred eighteen million, two hundred sixty thousand, one hundred thirty-four".