125545125 has 16 divisors (see below), whose sum is σ = 208907712. Its totient is φ = 66957200.

The previous prime is 125545117. The next prime is 125545129. The reversal of 125545125 is 521545521.

It is not a de Polignac number, because 125545125 - 2³ = 125545117 is a prime.

It is a super-2 number, since 2×125545125² = 31523156822531250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 125545092 and 125545101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125545129) 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 15 ways as a sum of consecutive naturals, for example, 167019 + ... + 167768.

It is an arithmetic number, because the mean of its divisors is an integer number (13056732).

Almost surely, 2^125545125 is an apocalyptic number.

125545125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125545125 is a deficient number, since it is larger than the sum of its proper divisors (83362587).

125545125 is an equidigital number, since it uses as much as digits as its factorization.

125545125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334805 (or 334795 counting only the distinct ones).

The product of its digits is 10000, while the sum is 30.

The square root of 125545125 is about 11204.6920975099. The cubic root of 125545125 is about 500.7257793124.

The spelling of 125545125 in words is "one hundred twenty-five million, five hundred forty-five thousand, one hundred twenty-five".