139090898 has 16 divisors (see below), whose sum is σ = 210852096. Its totient is φ = 68811120.

The previous prime is 139090879. The next prime is 139090937. The reversal of 139090898 is 898090931.

139090898 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 79865 + ... + 81587.

It is an arithmetic number, because the mean of its divisors is an integer number (13178256).

Almost surely, 2^139090898 is an apocalyptic number.

139090898 is a deficient number, since it is larger than the sum of its proper divisors (71761198).

139090898 is a wasteful number, since it uses less digits than its factorization.

139090898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2129.

The product of its (nonzero) digits is 139968, while the sum is 47.

The square root of 139090898 is about 11793.6804263979. The cubic root of 139090898 is about 518.1230384075.

The spelling of 139090898 in words is "one hundred thirty-nine million, ninety thousand, eight hundred ninety-eight".