138458058 has 8 divisors (see below), whose sum is σ = 276916128. Its totient is φ = 46152684.

The previous prime is 138458051. The next prime is 138458063. The reversal of 138458058 is 850854831.

138458058 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

138458058 is an admirable number.

It is a super-3 number, since 3×138458058³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (138458051) 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, 11538166 + ... + 11538177.

It is an arithmetic number, because the mean of its divisors is an integer number (34614516).

Almost surely, 2^138458058 is an apocalyptic number.

138458058 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

138458058 is a wasteful number, since it uses less digits than its factorization.

138458058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23076348.

The product of its (nonzero) digits is 153600, while the sum is 42.

The square root of 138458058 is about 11766.8202161841. The cubic root of 138458058 is about 517.3360529927.

The spelling of 138458058 in words is "one hundred thirty-eight million, four hundred fifty-eight thousand, fifty-eight".