138003051393 has 6 divisors (see below), whose sum is σ = 199337740914.
Its totient is φ = 92002034256.
The previous prime is 138003051377. The next prime is 138003051397. The reversal of 138003051393 is 393150300831.
It is a happy number.
138003051393 is a `hidden beast` number, since 138 + 0 + 0 + 3 + 0 + 513 + 9 + 3 = 666.
It can be written as a sum of positive squares in only one way, i.e., 106264916289 + 31738135104 = 325983^2 + 178152^2
It is not a de Polignac number, because 138003051393 - 24 = 138003051377 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (138003051397) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7666836180 + ... + 7666836197.
It is an arithmetic number, because the mean of its divisors is an integer number (33222956819).
Almost surely, 2138003051393 is an apocalyptic number.
It is an amenable number.
138003051393 is a deficient number, since it is larger than the sum of its proper divisors (61334689521).
138003051393 is a wasteful number, since it uses less digits than its factorization.
138003051393 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15333672383 (or 15333672380 counting only the distinct ones).
The product of its (nonzero) digits is 29160, while the sum is 36.
The spelling of 138003051393 in words is "one hundred thirty-eight billion, three million, fifty-one thousand, three hundred ninety-three".