194945541 has 16 divisors (see below), whose sum is σ = 297283200. Its totient is φ = 111313728.

The previous prime is 194945537. The next prime is 194945561. The reversal of 194945541 is 145549491.

It is a happy number.

It is not a de Polignac number, because 194945541 - 2² = 194945537 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 194945493 and 194945502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194945521) 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 15 ways as a sum of consecutive naturals, for example, 34975 + ... + 40163.

It is an arithmetic number, because the mean of its divisors is an integer number (18580200).

Almost surely, 2^194945541 is an apocalyptic number.

It is an amenable number.

194945541 is a deficient number, since it is larger than the sum of its proper divisors (102337659).

194945541 is a wasteful number, since it uses less digits than its factorization.

194945541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6988.

The product of its digits is 129600, while the sum is 42.

The square root of 194945541 is about 13962.2899626100. The cubic root of 194945541 is about 579.8350115335.

The spelling of 194945541 in words is "one hundred ninety-four million, nine hundred forty-five thousand, five hundred forty-one".