125041005 has 12 divisors (see below), whose sum is σ = 216737820. Its totient is φ = 66688512.

The previous prime is 125040997. The next prime is 125041013. The reversal of 125041005 is 500140521.

125041005 is a `hidden beast` number, since 1 + 250 + 410 + 0 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (125040997) and next prime (125041013).

It can be written as a sum of positive squares in 2 ways, for example, as 43283241 + 81757764 = 6579^2 + 9042^2 .

It is not a de Polignac number, because 125041005 - 2³ = 125040997 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1389300 + ... + 1389389.

It is an arithmetic number, because the mean of its divisors is an integer number (18061485).

Almost surely, 2^125041005 is an apocalyptic number.

125041005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125041005 is a deficient number, since it is larger than the sum of its proper divisors (91696815).

125041005 is a wasteful number, since it uses less digits than its factorization.

125041005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2778700 (or 2778697 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 125041005 is about 11182.1735364821. The cubic root of 125041005 is about 500.0546673561.

Adding to 125041005 its reverse (500140521), we get a palindrome (625181526).

The spelling of 125041005 in words is "one hundred twenty-five million, forty-one thousand, five".