138369093 has 8 divisors (see below), whose sum is σ = 184588800. Its totient is φ = 92197728.

The previous prime is 138369071. The next prime is 138369109. The reversal of 138369093 is 390963831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 138369093 - 2⁸ = 138368837 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138369013) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4773 + ... + 17306.

It is an arithmetic number, because the mean of its divisors is an integer number (23073600).

Almost surely, 2^138369093 is an apocalyptic number.

It is an amenable number.

138369093 is a deficient number, since it is larger than the sum of its proper divisors (46219707).

138369093 is a wasteful number, since it uses less digits than its factorization.

138369093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24171.

The product of its (nonzero) digits is 104976, while the sum is 42.

The square root of 138369093 is about 11763.0392756294. The cubic root of 138369093 is about 517.2252260180.

The spelling of 138369093 in words is "one hundred thirty-eight million, three hundred sixty-nine thousand, ninety-three".