138065003 has 4 divisors (see below), whose sum is σ = 138251568. Its totient is φ = 137878440.

The previous prime is 138064981. The next prime is 138065009. The reversal of 138065003 is 300560831.

138065003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 138065003 - 2¹⁰ = 138063979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138065009) 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, 92168 + ... + 93653.

It is an arithmetic number, because the mean of its divisors is an integer number (34562892).

Almost surely, 2^138065003 is an apocalyptic number.

138065003 is a deficient number, since it is larger than the sum of its proper divisors (186565).

138065003 is an equidigital number, since it uses as much as digits as its factorization.

138065003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186564.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 138065003 is about 11750.1065101556. The cubic root of 138065003 is about 516.8460508344.

The spelling of 138065003 in words is "one hundred thirty-eight million, sixty-five thousand, three".