139581125 has 16 divisors (see below), whose sum is σ = 183368640. Its totient is φ = 105786000.

The previous prime is 139581121. The next prime is 139581133. The reversal of 139581125 is 521185931.

It is not a de Polignac number, because 139581125 - 2² = 139581121 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139581121) 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 15 ways as a sum of consecutive naturals, for example, 27011 + ... + 31760.

It is an arithmetic number, because the mean of its divisors is an integer number (11460540).

Almost surely, 2^139581125 is an apocalyptic number.

It is an amenable number.

139581125 is a deficient number, since it is larger than the sum of its proper divisors (43787515).

139581125 is an equidigital number, since it uses as much as digits as its factorization.

139581125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58805 (or 58795 counting only the distinct ones).

The product of its digits is 10800, while the sum is 35.

The square root of 139581125 is about 11814.4456069678. The cubic root of 139581125 is about 518.7310342899.

The spelling of 139581125 in words is "one hundred thirty-nine million, five hundred eighty-one thousand, one hundred twenty-five".