194196925 has 18 divisors (see below), whose sum is σ = 259663502. Its totient is φ = 143221440.

The previous prime is 194196913. The next prime is 194196953. The reversal of 194196925 is 529691491.

It is a happy number.

It can be written as a sum of positive squares in 9 ways, for example, as 176066361 + 18130564 = 13269^2 + 4258^2 .

It is not a de Polignac number, because 194196925 - 2¹⁹ = 193672637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 250839 + ... + 251611.

Almost surely, 2^194196925 is an apocalyptic number.

It is an amenable number.

194196925 is a deficient number, since it is larger than the sum of its proper divisors (65466577).

194196925 is an frugal number, since it uses more digits than its factorization.

194196925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1569 (or 791 counting only the distinct ones).

The product of its digits is 174960, while the sum is 46.

The square root of 194196925 is about 13935.4556796683. The cubic root of 194196925 is about 579.0918457135.

The spelling of 194196925 in words is "one hundred ninety-four million, one hundred ninety-six thousand, nine hundred twenty-five".