138203067 has 16 divisors (see below), whose sum is σ = 198915840. Its totient is φ = 85089312.

The previous prime is 138203063. The next prime is 138203083. The reversal of 138203067 is 760302831.

It is not a de Polignac number, because 138203067 - 2² = 138203063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138203063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32533 + ... + 36534.

It is an arithmetic number, because the mean of its divisors is an integer number (12432240).

Almost surely, 2^138203067 is an apocalyptic number.

138203067 is a deficient number, since it is larger than the sum of its proper divisors (60712773).

138203067 is a wasteful number, since it uses less digits than its factorization.

138203067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69122.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 138203067 is about 11755.9800527221. The cubic root of 138203067 is about 517.0182742051.

Adding to 138203067 its reverse (760302831), we get a palindrome (898505898).

The spelling of 138203067 in words is "one hundred thirty-eight million, two hundred three thousand, sixty-seven".