138300051 has 8 divisors (see below), whose sum is σ = 185057424. Its totient is φ = 91871360.

The previous prime is 138300047. The next prime is 138300059. The reversal of 138300051 is 150003831.

It is a happy number.

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 138300051 - 2² = 138300047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138300059) 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, 81186 + ... + 82871.

It is an arithmetic number, because the mean of its divisors is an integer number (23132178).

Almost surely, 2^138300051 is an apocalyptic number.

138300051 is a deficient number, since it is larger than the sum of its proper divisors (46757373).

138300051 is a wasteful number, since it uses less digits than its factorization.

138300051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164341.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 138300051 is about 11760.1042087220. The cubic root of 138300051 is about 517.1391851149.

Adding to 138300051 its reverse (150003831), we get a palindrome (288303882).

The spelling of 138300051 in words is "one hundred thirty-eight million, three hundred thousand, fifty-one".