138018295283 has 4 divisors (see below), whose sum is σ = 150565413048. Its totient is φ = 125471177520.

The previous prime is 138018295277. The next prime is 138018295297. The reversal of 138018295283 is 382592810831.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 138018295283 - 2³² = 133723327987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138018295253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6273558866 + ... + 6273558887.

It is an arithmetic number, because the mean of its divisors is an integer number (37641353262).

Almost surely, 2^138018295283 is an apocalyptic number.

138018295283 is a deficient number, since it is larger than the sum of its proper divisors (12547117765).

138018295283 is a wasteful number, since it uses less digits than its factorization.

138018295283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12547117764.

The product of its (nonzero) digits is 829440, while the sum is 50.

The spelling of 138018295283 in words is "one hundred thirty-eight billion, eighteen million, two hundred ninety-five thousand, two hundred eighty-three".