138882503 has 4 divisors (see below), whose sum is σ = 147052080. Its totient is φ = 130712928.

The previous prime is 138882481. The next prime is 138882547. The reversal of 138882503 is 305288831.

138882503 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, and also an emirpimes, since its reverse is a distinct semiprime: 305288831 = 229 ⋅1333139.

It is a cyclic number.

It is not a de Polignac number, because 138882503 - 2¹⁶ = 138816967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138882593) 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, 4084763 + ... + 4084796.

It is an arithmetic number, because the mean of its divisors is an integer number (36763020).

Almost surely, 2^138882503 is an apocalyptic number.

138882503 is a deficient number, since it is larger than the sum of its proper divisors (8169577).

138882503 is an equidigital number, since it uses as much as digits as its factorization.

138882503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8169576.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 138882503 is about 11784.8420863413. The cubic root of 138882503 is about 517.8641472274.

The spelling of 138882503 in words is "one hundred thirty-eight million, eight hundred eighty-two thousand, five hundred three".