138223862 has 8 divisors (see below), whose sum is σ = 236955216. Its totient is φ = 59238792.

The previous prime is 138223849. The next prime is 138223901. The reversal of 138223862 is 268322831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4936553 + ... + 4936580.

It is an arithmetic number, because the mean of its divisors is an integer number (29619402).

Almost surely, 2^138223862 is an apocalyptic number.

138223862 is a deficient number, since it is larger than the sum of its proper divisors (98731354).

138223862 is an equidigital number, since it uses as much as digits as its factorization.

138223862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9873142.

The product of its digits is 27648, while the sum is 35.

The square root of 138223862 is about 11756.8644629425. The cubic root of 138223862 is about 517.0442042998.

The spelling of 138223862 in words is "one hundred thirty-eight million, two hundred twenty-three thousand, eight hundred sixty-two".