194492125 has 16 divisors (see below), whose sum is σ = 251100720. Its totient is φ = 150225600.

The previous prime is 194492107. The next prime is 194492131. The reversal of 194492125 is 521294491.

It can be written as a sum of positive squares in 8 ways, for example, as 111809476 + 82682649 = 10574^2 + 9093^2 .

It is not a de Polignac number, because 194492125 - 2¹¹ = 194490077 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23202 + ... + 30451.

It is an arithmetic number, because the mean of its divisors is an integer number (15693795).

Almost surely, 2^194492125 is an apocalyptic number.

It is an amenable number.

194492125 is a deficient number, since it is larger than the sum of its proper divisors (56608595).

194492125 is an equidigital number, since it uses as much as digits as its factorization.

194492125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53697 (or 53687 counting only the distinct ones).

The product of its digits is 25920, while the sum is 37.

The square root of 194492125 is about 13946.0433456949. The cubic root of 194492125 is about 579.3851242438.

The spelling of 194492125 in words is "one hundred ninety-four million, four hundred ninety-two thousand, one hundred twenty-five".