139252125 has 16 divisors (see below), whose sum is σ = 231716160. Its totient is φ = 74267600.

The previous prime is 139252123. The next prime is 139252129. The reversal of 139252125 is 521252931.

It is not a de Polignac number, because 139252125 - 2¹ = 139252123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 139252092 and 139252101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139252123) 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, 185295 + ... + 186044.

It is an arithmetic number, because the mean of its divisors is an integer number (14482260).

Almost surely, 2^139252125 is an apocalyptic number.

139252125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

139252125 is a deficient number, since it is larger than the sum of its proper divisors (92464035).

139252125 is an equidigital number, since it uses as much as digits as its factorization.

139252125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371357 (or 371347 counting only the distinct ones).

The product of its digits is 5400, while the sum is 30.

The square root of 139252125 is about 11800.5137600021. The cubic root of 139252125 is about 518.3231549463.

The spelling of 139252125 in words is "one hundred thirty-nine million, two hundred fifty-two thousand, one hundred twenty-five".