125415075 has 24 divisors (see below), whose sum is σ = 209861568. Its totient is φ = 66078880.

The previous prime is 125415071. The next prime is 125415109. The reversal of 125415075 is 570514521.

It is not a de Polignac number, because 125415075 - 2² = 125415071 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125415071) 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 23 ways as a sum of consecutive naturals, for example, 3849 + ... + 16298.

It is an arithmetic number, because the mean of its divisors is an integer number (8744232).

Almost surely, 2^125415075 is an apocalyptic number.

125415075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

125415075 is a deficient number, since it is larger than the sum of its proper divisors (84446493).

125415075 is a wasteful number, since it uses less digits than its factorization.

125415075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20243 (or 20238 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 30.

The square root of 125415075 is about 11198.8872215055. The cubic root of 125415075 is about 500.5528218840.

Adding to 125415075 its reverse (570514521), we get a palindrome (695929596).

The spelling of 125415075 in words is "one hundred twenty-five million, four hundred fifteen thousand, seventy-five".