138532922 has 8 divisors (see below), whose sum is σ = 226690272. Its totient is φ = 62969500.

The previous prime is 138532909. The next prime is 138532939. The reversal of 138532922 is 229235831.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3148454 + ... + 3148497.

It is an arithmetic number, because the mean of its divisors is an integer number (28336284).

Almost surely, 2^138532922 is an apocalyptic number.

138532922 is a deficient number, since it is larger than the sum of its proper divisors (88157350).

138532922 is a wasteful number, since it uses less digits than its factorization.

138532922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6296964.

The product of its digits is 25920, while the sum is 35.

The square root of 138532922 is about 11770.0009345794. Note that the first 3 decimals coincide. The cubic root of 138532922 is about 517.4292770553.

The spelling of 138532922 in words is "one hundred thirty-eight million, five hundred thirty-two thousand, nine hundred twenty-two".