138198200 has 48 divisors (see below), whose sum is σ = 367216080. Its totient is φ = 47381760.

The previous prime is 138198187. The next prime is 138198211. The reversal of 138198200 is 2891831.

138198200 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47957 + ... + 50756.

It is an arithmetic number, because the mean of its divisors is an integer number (7650335).

Almost surely, 2^138198200 is an apocalyptic number.

138198200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138198200 is an abundant number, since it is smaller than the sum of its proper divisors (229017880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138198200 is a wasteful number, since it uses less digits than its factorization.

138198200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98736 (or 98727 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 138198200 is about 11755.7730498679. The cubic root of 138198200 is about 517.0122049778.

The spelling of 138198200 in words is "one hundred thirty-eight million, one hundred ninety-eight thousand, two hundred".