138522814 has 8 divisors (see below), whose sum is σ = 211704840. Its totient is φ = 67954536.

The previous prime is 138522781. The next prime is 138522833. The reversal of 138522814 is 418225831.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 138522814.

It is a congruent number.

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, 653304 + ... + 653515.

It is an arithmetic number, because the mean of its divisors is an integer number (26463105).

Almost surely, 2^138522814 is an apocalyptic number.

138522814 is a deficient number, since it is larger than the sum of its proper divisors (73182026).

138522814 is a wasteful number, since it uses less digits than its factorization.

138522814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306874.

The product of its digits is 15360, while the sum is 34.

The square root of 138522814 is about 11769.5715300091. The cubic root of 138522814 is about 517.4166920748.

The spelling of 138522814 in words is "one hundred thirty-eight million, five hundred twenty-two thousand, eight hundred fourteen".