138833093 has 16 divisors (see below), whose sum is σ = 164244864. Its totient is φ = 114877440.

The previous prime is 138833081. The next prime is 138833141. The reversal of 138833093 is 390338831.

It is a cyclic number.

It is not a de Polignac number, because 138833093 - 2¹² = 138828997 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138833053) 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, 25346 + ... + 30332.

It is an arithmetic number, because the mean of its divisors is an integer number (10265304).

Almost surely, 2^138833093 is an apocalyptic number.

It is an amenable number.

138833093 is a deficient number, since it is larger than the sum of its proper divisors (25411771).

138833093 is an equidigital number, since it uses as much as digits as its factorization.

138833093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5132.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 138833093 is about 11782.7455628983. The cubic root of 138833093 is about 517.8027267173.

The spelling of 138833093 in words is "one hundred thirty-eight million, eight hundred thirty-three thousand, ninety-three".