125147139 has 32 divisors (see below), whose sum is σ = 183859200. Its totient is φ = 75254400.

The previous prime is 125147137. The next prime is 125147159. The reversal of 125147139 is 931741521.

It is not a de Polignac number, because 125147139 - 2¹ = 125147137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125147131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 465097 + ... + 465365.

It is an arithmetic number, because the mean of its divisors is an integer number (5745600).

Almost surely, 2^125147139 is an apocalyptic number.

125147139 is a deficient number, since it is larger than the sum of its proper divisors (58712061).

125147139 is a wasteful number, since it uses less digits than its factorization.

125147139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515.

The product of its digits is 7560, while the sum is 33.

The square root of 125147139 is about 11186.9182083360. The cubic root of 125147139 is about 500.1961084063.

The spelling of 125147139 in words is "one hundred twenty-five million, one hundred forty-seven thousand, one hundred thirty-nine".