138527226 has 16 divisors (see below), whose sum is σ = 307838400. Its totient is φ = 46175724.

The previous prime is 138527219. The next prime is 138527231. The reversal of 138527226 is 622725831.

138527226 is a `hidden beast` number, since 1 + 385 + 272 + 2 + 6 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1282606 + ... + 1282713.

It is an arithmetic number, because the mean of its divisors is an integer number (19239900).

Almost surely, 2^138527226 is an apocalyptic number.

138527226 is an abundant number, since it is smaller than the sum of its proper divisors (169311174).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138527226 is a wasteful number, since it uses less digits than its factorization.

138527226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2565330 (or 2565324 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 138527226 is about 11769.7589609983. The cubic root of 138527226 is about 517.4221853173.

The spelling of 138527226 in words is "one hundred thirty-eight million, five hundred twenty-seven thousand, two hundred twenty-six".