138272911 has 8 divisors (see below), whose sum is σ = 158124960. Its totient is φ = 118445568.

The previous prime is 138272881. The next prime is 138272929. The reversal of 138272911 is 119272831.

138272911 is digitally balanced in base 2, 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 cyclic number.

It is not a de Polignac number, because 138272911 - 2⁹ = 138272399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138272971) 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, 7995 + ... + 18451.

It is an arithmetic number, because the mean of its divisors is an integer number (19765620).

Almost surely, 2^138272911 is an apocalyptic number.

138272911 is a deficient number, since it is larger than the sum of its proper divisors (19852049).

138272911 is a wasteful number, since it uses less digits than its factorization.

138272911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12353.

The product of its digits is 6048, while the sum is 34.

The square root of 138272911 is about 11758.9502507664. The cubic root of 138272911 is about 517.1053551065.

The spelling of 138272911 in words is "one hundred thirty-eight million, two hundred seventy-two thousand, nine hundred eleven".