194335025 has 6 divisors (see below), whose sum is σ = 240975462. Its totient is φ = 155468000.

The previous prime is 194335013. The next prime is 194335033. The reversal of 194335025 is 520533491.

It can be written as a sum of positive squares in 3 ways, for example, as 3701776 + 190633249 = 1924^2 + 13807^2 .

It is not a de Polignac number, because 194335025 - 2⁶ = 194334961 is a prime.

It is a super-2 number, since 2×194335025² = 75532203883501250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 194334982 and 194335000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3886676 + ... + 3886725.

It is an arithmetic number, because the mean of its divisors is an integer number (40162577).

Almost surely, 2^194335025 is an apocalyptic number.

It is an amenable number.

194335025 is a deficient number, since it is larger than the sum of its proper divisors (46640437).

194335025 is an equidigital number, since it uses as much as digits as its factorization.

194335025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7773411 (or 7773406 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 194335025 is about 13940.4097859424. The cubic root of 194335025 is about 579.2290837848.

The spelling of 194335025 in words is "one hundred ninety-four million, three hundred thirty-five thousand, twenty-five".