125603271 has 32 divisors (see below), whose sum is σ = 194438400. Its totient is φ = 80053920.

The previous prime is 125603267. The next prime is 125603273. The reversal of 125603271 is 172306521.

It is a happy number.

125603271 is a `hidden beast` number, since 1 + 2 + 560 + 32 + 71 = 666.

It is not a de Polignac number, because 125603271 - 2² = 125603267 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125603273) 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 31 ways as a sum of consecutive naturals, for example, 57876 + ... + 60006.

It is an arithmetic number, because the mean of its divisors is an integer number (6076200).

Almost surely, 2^125603271 is an apocalyptic number.

125603271 is a deficient number, since it is larger than the sum of its proper divisors (68835129).

125603271 is a wasteful number, since it uses less digits than its factorization.

125603271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2236 (or 2230 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 125603271 is about 11207.2865136928. The cubic root of 125603271 is about 500.8030707974.

Adding to 125603271 its reverse (172306521), we get a palindrome (297909792).

The spelling of 125603271 in words is "one hundred twenty-five million, six hundred three thousand, two hundred seventy-one".