134218458 has 80 divisors (see below), whose sum is σ = 331578720. Its totient is φ = 40240800.

The previous prime is 134218433. The next prime is 134218459. The reversal of 134218458 is 854812431.

It is not an unprimeable number, because it can be changed into a prime (134218459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 193893 + ... + 194583.

It is an arithmetic number, because the mean of its divisors is an integer number (4144734).

Almost surely, 2^134218458 is an apocalyptic number.

134218458 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 134218458, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165789360).

134218458 is an abundant number, since it is smaller than the sum of its proper divisors (197360262).

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

134218458 is a wasteful number, since it uses less digits than its factorization.

134218458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825 (or 816 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 134218458 is about 11585.2690085298. The cubic root of 134218458 is about 512.0009282413. Note that the first 3 decimals are identical.

The spelling of 134218458 in words is "one hundred thirty-four million, two hundred eighteen thousand, four hundred fifty-eight".