131838198 has 8 divisors (see below), whose sum is σ = 263676408. Its totient is φ = 43946064.

The previous prime is 131838193. The next prime is 131838199. The reversal of 131838198 is 891838131.

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

131838198 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131838191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10986511 + ... + 10986522.

It is an arithmetic number, because the mean of its divisors is an integer number (32959551).

Almost surely, 2^131838198 is an apocalyptic number.

131838198 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

131838198 is a wasteful number, since it uses less digits than its factorization.

131838198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21973038.

The product of its digits is 41472, while the sum is 42.

The square root of 131838198 is about 11482.0816057020. The cubic root of 131838198 is about 508.9562119855.

The spelling of 131838198 in words is "one hundred thirty-one million, eight hundred thirty-eight thousand, one hundred ninety-eight".