138347166 has 16 divisors (see below), whose sum is σ = 276933888. Its totient is φ = 46075800.

The previous prime is 138347159. The next prime is 138347177. The reversal of 138347166 is 661743831.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 1980 + ... + 16751.

It is an arithmetic number, because the mean of its divisors is an integer number (17308368).

Almost surely, 2^138347166 is an apocalyptic number.

138347166 is an abundant number, since it is smaller than the sum of its proper divisors (138586722).

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

138347166 is a wasteful number, since it uses less digits than its factorization.

138347166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19967.

The product of its digits is 72576, while the sum is 39.

The square root of 138347166 is about 11762.1072091696. The cubic root of 138347166 is about 517.1979034505.

The spelling of 138347166 in words is "one hundred thirty-eight million, three hundred forty-seven thousand, one hundred sixty-six".