138382851 has 8 divisors (see below), whose sum is σ = 186143760. Its totient is φ = 91438592.

The previous prime is 138382837. The next prime is 138382861. The reversal of 138382851 is 158283831.

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 138382851 - 2⁶ = 138382787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138382861) 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, 203766 + ... + 204443.

It is an arithmetic number, because the mean of its divisors is an integer number (23267970).

Almost surely, 2^138382851 is an apocalyptic number.

138382851 is a deficient number, since it is larger than the sum of its proper divisors (47760909).

138382851 is a wasteful number, since it uses less digits than its factorization.

138382851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408325.

The product of its digits is 46080, while the sum is 39.

The square root of 138382851 is about 11763.6240589369. The cubic root of 138382851 is about 517.2423679695.

The spelling of 138382851 in words is "one hundred thirty-eight million, three hundred eighty-two thousand, eight hundred fifty-one".