138914711 has 4 divisors (see below), whose sum is σ = 149600472. Its totient is φ = 128228952.

The previous prime is 138914707. The next prime is 138914731. The reversal of 138914711 is 117419831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 117419831 = 2671 ⋅43961.

It is a cyclic number.

It is not a de Polignac number, because 138914711 - 2² = 138914707 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138914731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5342861 + ... + 5342886.

It is an arithmetic number, because the mean of its divisors is an integer number (37400118).

Almost surely, 2^138914711 is an apocalyptic number.

138914711 is a deficient number, since it is larger than the sum of its proper divisors (10685761).

138914711 is a wasteful number, since it uses less digits than its factorization.

138914711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10685760.

The product of its digits is 6048, while the sum is 35.

The square root of 138914711 is about 11786.2085082523. The cubic root of 138914711 is about 517.9041764581.

The spelling of 138914711 in words is "one hundred thirty-eight million, nine hundred fourteen thousand, seven hundred eleven".