139103925 has 24 divisors (see below), whose sum is σ = 235339104. Its totient is φ = 72461760.

The previous prime is 139103903. The next prime is 139103927. The reversal of 139103925 is 529301931.

It is not a de Polignac number, because 139103925 - 2⁵ = 139103893 is a prime.

It is a super-3 number, since 3×139103925³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139103927) 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 23 ways as a sum of consecutive naturals, for example, 18342 + ... + 24791.

It is an arithmetic number, because the mean of its divisors is an integer number (9805796).

Almost surely, 2^139103925 is an apocalyptic number.

139103925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

139103925 is a deficient number, since it is larger than the sum of its proper divisors (96235179).

139103925 is a wasteful number, since it uses less digits than its factorization.

139103925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43189 (or 43184 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 33.

The square root of 139103925 is about 11794.2327007737. The cubic root of 139103925 is about 518.1392133891.

The spelling of 139103925 in words is "one hundred thirty-nine million, one hundred three thousand, nine hundred twenty-five".