199419134 has 4 divisors (see below), whose sum is σ = 299128704. Its totient is φ = 99709566.

The previous prime is 199419133. The next prime is 199419139. The reversal of 199419134 is 431914991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 431914991 = 131 ⋅3297061.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 199419091 and 199419100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199419133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49854782 + ... + 49854785.

It is an arithmetic number, because the mean of its divisors is an integer number (74782176).

Almost surely, 2^199419134 is an apocalyptic number.

199419134 is a deficient number, since it is larger than the sum of its proper divisors (99709570).

199419134 is an equidigital number, since it uses as much as digits as its factorization.

199419134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99709569.

The product of its digits is 34992, while the sum is 41.

The square root of 199419134 is about 14121.5839763109. The cubic root of 199419134 is about 584.2368444945.

The spelling of 199419134 in words is "one hundred ninety-nine million, four hundred nineteen thousand, one hundred thirty-four".