125139025 has 24 divisors (see below), whose sum is σ = 170819424. Its totient is φ = 90182400.

The previous prime is 125139019. The next prime is 125139029. The reversal of 125139025 is 520931521.

It is a de Polignac number, because none of the positive numbers 2^k-125139025 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125138984 and 125139002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125139029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29062 + ... + 33088.

It is an arithmetic number, because the mean of its divisors is an integer number (7117476).

Almost surely, 2^125139025 is an apocalyptic number.

It is an amenable number.

125139025 is a deficient number, since it is larger than the sum of its proper divisors (45680399).

125139025 is a wasteful number, since it uses less digits than its factorization.

125139025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4161 (or 4156 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 125139025 is about 11186.5555467266. Note that the first 4 decimals coincide. The cubic root of 125139025 is about 500.1852979875.

The spelling of 125139025 in words is "one hundred twenty-five million, one hundred thirty-nine thousand, twenty-five".