138167206 has 8 divisors (see below), whose sum is σ = 207311184. Its totient is φ = 69063480.

The previous prime is 138167189. The next prime is 138167219. The reversal of 138167206 is 602761831.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 916 + ... + 16648.

It is an arithmetic number, because the mean of its divisors is an integer number (25913898).

Almost surely, 2^138167206 is an apocalyptic number.

138167206 is a deficient number, since it is larger than the sum of its proper divisors (69143978).

138167206 is a wasteful number, since it uses less digits than its factorization.

138167206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20126.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 138167206 is about 11754.4547300162. The cubic root of 138167206 is about 516.9735516177.

The spelling of 138167206 in words is "one hundred thirty-eight million, one hundred sixty-seven thousand, two hundred six".