139716838 has 16 divisors (see below), whose sum is σ = 220482000. Its totient is φ = 66304672.

The previous prime is 139716833. The next prime is 139716869. The reversal of 139716838 is 838617931.

139716838 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139716833) 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, 16993 + ... + 23836.

It is an arithmetic number, because the mean of its divisors is an integer number (13780125).

Almost surely, 2^139716838 is an apocalyptic number.

139716838 is a deficient number, since it is larger than the sum of its proper divisors (80765162).

139716838 is a wasteful number, since it uses less digits than its factorization.

139716838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40919.

The product of its digits is 217728, while the sum is 46.

The square root of 139716838 is about 11820.1877311657. The cubic root of 139716838 is about 518.8990984206.

The spelling of 139716838 in words is "one hundred thirty-nine million, seven hundred sixteen thousand, eight hundred thirty-eight".