138473067 has 8 divisors (see below), whose sum is σ = 184801680. Its totient is φ = 92229920.

The previous prime is 138473033. The next prime is 138473077. The reversal of 138473067 is 760374831.

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 138473067 - 2⁶ = 138473003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138473077) 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, 17484 + ... + 24137.

It is an arithmetic number, because the mean of its divisors is an integer number (23100210).

Almost surely, 2^138473067 is an apocalyptic number.

138473067 is a deficient number, since it is larger than the sum of its proper divisors (46328613).

138473067 is a wasteful number, since it uses less digits than its factorization.

138473067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42733.

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 138473067 is about 11767.4579667828. The cubic root of 138473067 is about 517.3547455758.

The spelling of 138473067 in words is "one hundred thirty-eight million, four hundred seventy-three thousand, sixty-seven".