138022851 has 8 divisors (see below), whose sum is σ = 188519184. Its totient is φ = 89770880.

The previous prime is 138022837. The next prime is 138022867. The reversal of 138022851 is 158220831.

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

It is a cyclic number.

It is not a de Polignac number, because 138022851 - 2¹¹ = 138020803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138022351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 560946 + ... + 561191.

It is an arithmetic number, because the mean of its divisors is an integer number (23564898).

Almost surely, 2^138022851 is an apocalyptic number.

138022851 is a deficient number, since it is larger than the sum of its proper divisors (50496333).

138022851 is a wasteful number, since it uses less digits than its factorization.

138022851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122181.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 138022851 is about 11748.3126873607. The cubic root of 138022851 is about 516.7934468392.

It can be divided in two parts, 13802 and 2851, that added together give a triangular number (16653 = T₁₈₂).

The spelling of 138022851 in words is "one hundred thirty-eight million, twenty-two thousand, eight hundred fifty-one".