126195025 has 12 divisors (see below), whose sum is σ = 170707824. Its totient is φ = 91778000.

The previous prime is 126195011. The next prime is 126195059. The reversal of 126195025 is 520591621.

It is not a de Polignac number, because 126195025 - 2⁹ = 126194513 is a prime.

It is a Duffinian number.

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 11 ways as a sum of consecutive naturals, for example, 229171 + ... + 229720.

It is an arithmetic number, because the mean of its divisors is an integer number (14225652).

Almost surely, 2^126195025 is an apocalyptic number.

It is an amenable number.

126195025 is a deficient number, since it is larger than the sum of its proper divisors (44512799).

126195025 is a wasteful number, since it uses less digits than its factorization.

126195025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458912 (or 458907 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 126195025 is about 11233.6559053587. The cubic root of 126195025 is about 501.5883158298.

The spelling of 126195025 in words is "one hundred twenty-six million, one hundred ninety-five thousand, twenty-five".