138496318 has 8 divisors (see below), whose sum is σ = 207816840. Its totient is φ = 69224040.

The previous prime is 138496289. The next prime is 138496327. The reversal of 138496318 is 813694831.

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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3733 + ... + 17056.

It is an arithmetic number, because the mean of its divisors is an integer number (25977105).

Almost surely, 2^138496318 is an apocalyptic number.

138496318 is a deficient number, since it is larger than the sum of its proper divisors (69320522).

138496318 is a wasteful number, since it uses less digits than its factorization.

138496318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24122.

The product of its digits is 124416, while the sum is 43.

The square root of 138496318 is about 11768.4458617100. The cubic root of 138496318 is about 517.3837002846.

The spelling of 138496318 in words is "one hundred thirty-eight million, four hundred ninety-six thousand, three hundred eighteen".