199180134 has 40 divisors (see below), whose sum is σ = 452623248. Its totient is φ = 65454480.

The previous prime is 199180133. The next prime is 199180153. The reversal of 199180134 is 431081991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199180133) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2844 + ... + 20160.

Almost surely, 2^199180134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199180134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226311624).

199180134 is an abundant number, since it is smaller than the sum of its proper divisors (253443114).

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

199180134 is a wasteful number, since it uses less digits than its factorization.

199180134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17402 (or 17393 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 199180134 is about 14113.1192158219. The cubic root of 199180134 is about 584.0033523139.

The spelling of 199180134 in words is "one hundred ninety-nine million, one hundred eighty thousand, one hundred thirty-four".