138271323 has 16 divisors (see below), whose sum is σ = 189264672. Its totient is φ = 89760000.

The previous prime is 138271297. The next prime is 138271327. The reversal of 138271323 is 323172831.

It is not a de Polignac number, because 138271323 - 2¹⁴ = 138254939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138271327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14743 + ... + 22223.

It is an arithmetic number, because the mean of its divisors is an integer number (11829042).

Almost surely, 2^138271323 is an apocalyptic number.

138271323 is a deficient number, since it is larger than the sum of its proper divisors (50993349).

138271323 is a wasteful number, since it uses less digits than its factorization.

138271323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7646.

The product of its digits is 6048, while the sum is 30.

The square root of 138271323 is about 11758.8827275384. The cubic root of 138271323 is about 517.1033755275.

The spelling of 138271323 in words is "one hundred thirty-eight million, two hundred seventy-one thousand, three hundred twenty-three".