194488975 has 12 divisors (see below), whose sum is σ = 241868200. Its totient is φ = 155138400.

The previous prime is 194488969. The next prime is 194488979. The reversal of 194488975 is 579884491.

It is a happy number.

It is not a de Polignac number, because 194488975 - 2³ = 194488967 is a prime.

It is a super-2 number, since 2×194488975² = 75651922793101250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194488979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2421 + ... + 19870.

Almost surely, 2^194488975 is an apocalyptic number.

194488975 is a deficient number, since it is larger than the sum of its proper divisors (47379225).

194488975 is a wasteful number, since it uses less digits than its factorization.

194488975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22650 (or 22645 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 55.

The square root of 194488975 is about 13945.9304099798. The cubic root of 194488975 is about 579.3819963143.

The spelling of 194488975 in words is "one hundred ninety-four million, four hundred eighty-eight thousand, nine hundred seventy-five".