139868875 has 8 divisors (see below), whose sum is σ = 174556512. Its totient is φ = 111895000.

The previous prime is 139868873. The next prime is 139868879. The reversal of 139868875 is 578868931.

139868875 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 139868875 - 2¹ = 139868873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139868873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 559351 + ... + 559600.

It is an arithmetic number, because the mean of its divisors is an integer number (21819564).

Almost surely, 2^139868875 is an apocalyptic number.

139868875 is a deficient number, since it is larger than the sum of its proper divisors (34687637).

139868875 is an equidigital number, since it uses as much as digits as its factorization.

139868875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118966 (or 1118956 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 55.

The square root of 139868875 is about 11826.6172255637. The cubic root of 139868875 is about 519.0872486452.

The spelling of 139868875 in words is "one hundred thirty-nine million, eight hundred sixty-eight thousand, eight hundred seventy-five".