199161792 has 84 divisors (see below), whose sum is σ = 590595720. Its totient is φ = 64092672.

The previous prime is 199161791. The next prime is 199161803. The reversal of 199161792 is 297161991.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199161791) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10743 + ... + 22665.

Almost surely, 2^199161792 is an apocalyptic number.

199161792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199161792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295297860).

199161792 is an abundant number, since it is smaller than the sum of its proper divisors (391433928).

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

199161792 is a wasteful number, since it uses less digits than its factorization.

199161792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11970 (or 11957 counting only the distinct ones).

The product of its digits is 61236, while the sum is 45.

The square root of 199161792 is about 14112.4693799491. The cubic root of 199161792 is about 583.9854252946.

The spelling of 199161792 in words is "one hundred ninety-nine million, one hundred sixty-one thousand, seven hundred ninety-two".