125130139 has 2 divisors, whose sum is σ = 125130140. Its totient is φ = 125130138.

The previous prime is 125130127. The next prime is 125130169. The reversal of 125130139 is 931031521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125130139 - 2⁵ = 125130107 is a prime.

It is not a weakly prime, because it can be changed into another prime (125130119) 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 as a sum of consecutive naturals, namely, 62565069 + 62565070.

It is an arithmetic number, because the mean of its divisors is an integer number (62565070).

Almost surely, 2^125130139 is an apocalyptic number.

125130139 is a deficient number, since it is larger than the sum of its proper divisors (1).

125130139 is an equidigital number, since it uses as much as digits as its factorization.

125130139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 125130139 is about 11186.1583664813. The cubic root of 125130139 is about 500.1734584840.

The spelling of 125130139 in words is "one hundred twenty-five million, one hundred thirty thousand, one hundred thirty-nine".