138331182 has 16 divisors (see below), whose sum is σ = 301813632. Its totient is φ = 41918520.

The previous prime is 138331181. The next prime is 138331183. The reversal of 138331182 is 281133831.

138331182 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (138331181) and next prime (138331183).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138331181) 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, 1047898 + ... + 1048029.

It is an arithmetic number, because the mean of its divisors is an integer number (18863352).

Almost surely, 2^138331182 is an apocalyptic number.

138331182 is an abundant number, since it is smaller than the sum of its proper divisors (163482450).

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

138331182 is a wasteful number, since it uses less digits than its factorization.

138331182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2095943.

The product of its digits is 3456, while the sum is 30.

The square root of 138331182 is about 11761.4277194565. The cubic root of 138331182 is about 517.1779844551.

The spelling of 138331182 in words is "one hundred thirty-eight million, three hundred thirty-one thousand, one hundred eighty-two".