194739325 has 24 divisors (see below), whose sum is σ = 270563040. Its totient is φ = 137793600.

The previous prime is 194739323. The next prime is 194739329. The reversal of 194739325 is 523937491.

It is not a de Polignac number, because 194739325 - 2¹ = 194739323 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194739323) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 606 + ... + 19744.

It is an arithmetic number, because the mean of its divisors is an integer number (11273460).

Almost surely, 2^194739325 is an apocalyptic number.

It is an amenable number.

194739325 is a deficient number, since it is larger than the sum of its proper divisors (75823715).

194739325 is a wasteful number, since it uses less digits than its factorization.

194739325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19197 (or 19192 counting only the distinct ones).

The product of its digits is 204120, while the sum is 43.

The square root of 194739325 is about 13954.9032601448. The cubic root of 194739325 is about 579.6304869908.

The spelling of 194739325 in words is "one hundred ninety-four million, seven hundred thirty-nine thousand, three hundred twenty-five".