193956225 has 24 divisors (see below), whose sum is σ = 323684640. Its totient is φ = 102472320.

The previous prime is 193956211. The next prime is 193956227. The reversal of 193956225 is 522659391.

It is not a de Polignac number, because 193956225 - 2⁵ = 193956193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (193956227) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 4060 + ... + 20109.

It is an arithmetic number, because the mean of its divisors is an integer number (13486860).

Almost surely, 2^193956225 is an apocalyptic number.

193956225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

193956225 is a deficient number, since it is larger than the sum of its proper divisors (129728415).

193956225 is a wasteful number, since it uses less digits than its factorization.

193956225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24289 (or 24284 counting only the distinct ones).

The product of its digits is 145800, while the sum is 42.

The square root of 193956225 is about 13926.8167576083. The cubic root of 193956225 is about 578.8524923947.

The spelling of 193956225 in words is "one hundred ninety-three million, nine hundred fifty-six thousand, two hundred twenty-five".