138045782 has 8 divisors (see below), whose sum is σ = 236649936. Its totient is φ = 59162472.

The previous prime is 138045769. The next prime is 138045799. The reversal of 138045782 is 287540831.

138045782 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.

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 3 ways as a sum of consecutive naturals, for example, 4930193 + ... + 4930220.

It is an arithmetic number, because the mean of its divisors is an integer number (29581242).

Almost surely, 2^138045782 is an apocalyptic number.

138045782 is a deficient number, since it is larger than the sum of its proper divisors (98604154).

138045782 is an equidigital number, since it uses as much as digits as its factorization.

138045782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9860422.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 138045782 is about 11749.2885742074. The cubic root of 138045782 is about 516.8220651301.

The spelling of 138045782 in words is "one hundred thirty-eight million, forty-five thousand, seven hundred eighty-two".