138226695 has 32 divisors (see below), whose sum is σ = 227435520. Its totient is φ = 71660160.

The previous prime is 138226687. The next prime is 138226717. The reversal of 138226695 is 596622831.

It is not a de Polignac number, because 138226695 - 2³ = 138226687 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78525 + ... + 80265.

It is an arithmetic number, because the mean of its divisors is an integer number (7107360).

Almost surely, 2^138226695 is an apocalyptic number.

138226695 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

138226695 is a deficient number, since it is larger than the sum of its proper divisors (89208825).

138226695 is a wasteful number, since it uses less digits than its factorization.

138226695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1895.

The product of its digits is 155520, while the sum is 42.

The square root of 138226695 is about 11756.9849451294. The cubic root of 138226695 is about 517.0477366764.

The spelling of 138226695 in words is "one hundred thirty-eight million, two hundred twenty-six thousand, six hundred ninety-five".