194917136 has 10 divisors (see below), whose sum is σ = 377651982. Its totient is φ = 97458560.

The previous prime is 194917133. The next prime is 194917141. The reversal of 194917136 is 631719491.

It can be written as a sum of positive squares in only one way, i.e., 159870736 + 35046400 = 12644^2 + 5920^2 .

It is a junction number, because it is equal to n+sod(n) for n = 194917093 and 194917102.

It is not an unprimeable number, because it can be changed into a prime (194917133) 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 as a sum of consecutive naturals, namely, 6091145 + ... + 6091176.

Almost surely, 2^194917136 is an apocalyptic number.

194917136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

194917136 is a deficient number, since it is larger than the sum of its proper divisors (182734846).

194917136 is a wasteful number, since it uses less digits than its factorization.

194917136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12182329 (or 12182323 counting only the distinct ones).

The product of its digits is 40824, while the sum is 41.

The square root of 194917136 is about 13961.2727213532. The cubic root of 194917136 is about 579.8068480895.

The spelling of 194917136 in words is "one hundred ninety-four million, nine hundred seventeen thousand, one hundred thirty-six".