138096278 has 16 divisors (see below), whose sum is σ = 219200256. Its totient is φ = 65114280.

The previous prime is 138096271. The next prime is 138096307. The reversal of 138096278 is 872690831.

138096278 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138096271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17876 + ... + 24407.

It is an arithmetic number, because the mean of its divisors is an integer number (13700016).

Almost surely, 2^138096278 is an apocalyptic number.

138096278 is a deficient number, since it is larger than the sum of its proper divisors (81103978).

138096278 is a wasteful number, since it uses less digits than its factorization.

138096278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42379.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 138096278 is about 11751.4372737976. The cubic root of 138096278 is about 516.8850738537.

The spelling of 138096278 in words is "one hundred thirty-eight million, ninety-six thousand, two hundred seventy-eight".