138232292671729 has 3 divisors (see below), whose sum is σ = 138232304428953. Its totient is φ = 138232280914506.

The previous prime is 138232292671703. The next prime is 138232292671757. The reversal of 138232292671729 is 927176292232831.

The square root of 138232292671729 is 11757223.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 138232292671729 - 2³⁹ = 137682536857841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138232292671799) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 5878612 + ... + 17635834.

It is an arithmetic number, because the mean of its divisors is an integer number (46077434809651).

Almost surely, 2^{138232292671729} is an apocalyptic number.

138232292671729 is the 11757223-rd square number.

138232292671729 is the 5878612-nd centered octagonal number.

It is an amenable number.

138232292671729 is a deficient number, since it is larger than the sum of its proper divisors (11757224).

138232292671729 is an frugal number, since it uses more digits than its factorization.

138232292671729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23514446 (or 11757223 counting only the distinct ones).

The product of its digits is 54867456, while the sum is 64.

The spelling of 138232292671729 in words is "one hundred thirty-eight trillion, two hundred thirty-two billion, two hundred ninety-two million, six hundred seventy-one thousand, seven hundred twenty-nine".