194425207 has 4 divisors (see below), whose sum is σ = 197088640. Its totient is φ = 191761776.

The previous prime is 194425171. The next prime is 194425267. The reversal of 194425207 is 702524491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 702524491 = 7573 ⋅92767.

It is a cyclic number.

It is not a de Polignac number, because 194425207 - 2⁷ = 194425079 is a prime.

It is a super-2 number, since 2×194425207² = 75602322233985698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194425267) 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 3 ways as a sum of consecutive naturals, for example, 1331607 + ... + 1331752.

It is an arithmetic number, because the mean of its divisors is an integer number (49272160).

Almost surely, 2^194425207 is an apocalyptic number.

194425207 is a deficient number, since it is larger than the sum of its proper divisors (2663433).

194425207 is an equidigital number, since it uses as much as digits as its factorization.

194425207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2663432.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 194425207 is about 13943.6439641867. The cubic root of 194425207 is about 579.3186678406.

Adding to 194425207 its reverse (702524491), we get a palindrome (896949698).

It can be divided in two parts, 19442 and 5207, that added together give a square (24649 = 157²).

The spelling of 194425207 in words is "one hundred ninety-four million, four hundred twenty-five thousand, two hundred seven".