194055939 has 64 divisors (see below), whose sum is σ = 370114560. Its totient is φ = 97524000.

The previous prime is 194055923. The next prime is 194055941. The reversal of 194055939 is 939550491.

It is a happy number.

194055939 is a `hidden beast` number, since 1 + 94 + 0 + 559 + 3 + 9 = 666.

It is not a de Polignac number, because 194055939 - 2⁴ = 194055923 is a prime.

It is a super-2 number, since 2×194055939² = 75315414922343442, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 194055894 and 194055903.

It is not an unprimeable number, because it can be changed into a prime (194057939) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 62944 + ... + 65954.

It is an arithmetic number, because the mean of its divisors is an integer number (5783040).

Almost surely, 2^194055939 is an apocalyptic number.

194055939 is a deficient number, since it is larger than the sum of its proper divisors (176058621).

194055939 is a wasteful number, since it uses less digits than its factorization.

194055939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3069 (or 3063 counting only the distinct ones).

The product of its (nonzero) digits is 218700, while the sum is 45.

The square root of 194055939 is about 13930.3962255207. The cubic root of 194055939 is about 578.9516725214.

The spelling of 194055939 in words is "one hundred ninety-four million, fifty-five thousand, nine hundred thirty-nine".