138270223 has 12 divisors (see below), whose sum is σ = 171115248. Its totient is φ = 109399680.

The previous prime is 138270211. The next prime is 138270259. The reversal of 138270223 is 322072831.

It is a de Polignac number, because none of the positive numbers 2^k-138270223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 138270191 and 138270200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138270203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57258 + ... + 59623.

It is an arithmetic number, because the mean of its divisors is an integer number (14259604).

Almost surely, 2^138270223 is an apocalyptic number.

138270223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

138270223 is a deficient number, since it is larger than the sum of its proper divisors (32845025).

138270223 is a wasteful number, since it uses less digits than its factorization.

138270223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116914 (or 116901 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 138270223 is about 11758.8359542941. The cubic root of 138270223 is about 517.1020042738.

The spelling of 138270223 in words is "one hundred thirty-eight million, two hundred seventy thousand, two hundred twenty-three".