138733193 has 8 divisors (see below), whose sum is σ = 146193600. Its totient is φ = 131288688.

The previous prime is 138733169. The next prime is 138733201. The reversal of 138733193 is 391337831.

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 138733193 - 2¹⁰ = 138732169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138733123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16763 + ... + 23631.

It is an arithmetic number, because the mean of its divisors is an integer number (18274200).

Almost surely, 2^138733193 is an apocalyptic number.

It is an amenable number.

138733193 is a deficient number, since it is larger than the sum of its proper divisors (7460407).

138733193 is a wasteful number, since it uses less digits than its factorization.

138733193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7951.

The product of its digits is 40824, while the sum is 38.

The square root of 138733193 is about 11778.5055503659. The cubic root of 138733193 is about 517.6784986396.

The spelling of 138733193 in words is "one hundred thirty-eight million, seven hundred thirty-three thousand, one hundred ninety-three".