194513836 has 12 divisors (see below), whose sum is σ = 371344680. Its totient is φ = 88415360.

The previous prime is 194513831. The next prime is 194513843. The reversal of 194513836 is 638315491.

It is not an unprimeable number, because it can be changed into a prime (194513831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2210341 + ... + 2210428.

It is an arithmetic number, because the mean of its divisors is an integer number (30945390).

Almost surely, 2^194513836 is an apocalyptic number.

It is an amenable number.

194513836 is a deficient number, since it is larger than the sum of its proper divisors (176830844).

194513836 is a wasteful number, since it uses less digits than its factorization.

194513836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4420784 (or 4420782 counting only the distinct ones).

The product of its digits is 77760, while the sum is 40.

The square root of 194513836 is about 13946.8217167927. The cubic root of 194513836 is about 579.4066822073.

The spelling of 194513836 in words is "one hundred ninety-four million, five hundred thirteen thousand, eight hundred thirty-six".