138026456 has 16 divisors (see below), whose sum is σ = 258984600. Its totient is φ = 68963904.

The previous prime is 138026419. The next prime is 138026461. The reversal of 138026456 is 654620831.

138026456 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

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, 7511 + ... + 18233.

Almost surely, 2^138026456 is an apocalyptic number.

It is an amenable number.

138026456 is a deficient number, since it is larger than the sum of its proper divisors (120958144).

138026456 is a wasteful number, since it uses less digits than its factorization.

138026456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12338 (or 12334 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 138026456 is about 11748.4661126464. The cubic root of 138026456 is about 516.7979461525.

The spelling of 138026456 in words is "one hundred thirty-eight million, twenty-six thousand, four hundred fifty-six".