138224086226 has 8 divisors (see below), whose sum is σ = 209170962684. Its totient is φ = 68500432000.

The previous prime is 138224086207. The next prime is 138224086243. The reversal of 138224086226 is 622680422831.

It is a Cunningham number, because it is equal to 371785²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 138224086225 + 1 = 371785^2 + 1^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305805275 + ... + 305805726.

Almost surely, 2^138224086226 is an apocalyptic number.

138224086226 is a deficient number, since it is larger than the sum of its proper divisors (70946876458).

138224086226 is a wasteful number, since it uses less digits than its factorization.

138224086226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611611116.

The product of its (nonzero) digits is 442368, while the sum is 44.

The spelling of 138224086226 in words is "one hundred thirty-eight billion, two hundred twenty-four million, eighty-six thousand, two hundred twenty-six".