138946198 has 8 divisors (see below), whose sum is σ = 210010680. Its totient is φ = 68942640.

The previous prime is 138946169. The next prime is 138946237. The reversal of 138946198 is 891649831.

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, 264903 + ... + 265426.

It is an arithmetic number, because the mean of its divisors is an integer number (26251335).

Almost surely, 2^138946198 is an apocalyptic number.

138946198 is a deficient number, since it is larger than the sum of its proper divisors (71064482).

138946198 is a wasteful number, since it uses less digits than its factorization.

138946198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530462.

The product of its digits is 373248, while the sum is 49.

The square root of 138946198 is about 11787.5441886765. The cubic root of 138946198 is about 517.9433036241.

The spelling of 138946198 in words is "one hundred thirty-eight million, nine hundred forty-six thousand, one hundred ninety-eight".