131043198 has 64 divisors (see below), whose sum is σ = 310125312. Its totient is φ = 36391680.

The previous prime is 131043197. The next prime is 131043203. The reversal of 131043198 is 891340131.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131043197) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139386 + ... + 140322.

It is an arithmetic number, because the mean of its divisors is an integer number (4845708).

Almost surely, 2^131043198 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131043198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155062656).

131043198 is an abundant number, since it is smaller than the sum of its proper divisors (179082114).

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

131043198 is a wasteful number, since it uses less digits than its factorization.

131043198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 131043198 is about 11447.4101001056. The cubic root of 131043198 is about 507.9311266083.

The spelling of 131043198 in words is "one hundred thirty-one million, forty-three thousand, one hundred ninety-eight".