139419836 has 24 divisors (see below), whose sum is σ = 255546144. Its totient is φ = 66429440.

The previous prime is 139419827. The next prime is 139419851. The reversal of 139419836 is 638914931.

It is a congruent 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, 23156 + ... + 28548.

It is an arithmetic number, because the mean of its divisors is an integer number (10647756).

Almost surely, 2^139419836 is an apocalyptic number.

It is an amenable number.

139419836 is a deficient number, since it is larger than the sum of its proper divisors (116126308).

139419836 is a wasteful number, since it uses less digits than its factorization.

139419836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5701 (or 5699 counting only the distinct ones).

The product of its digits is 139968, while the sum is 44.

The square root of 139419836 is about 11807.6177106138. The cubic root of 139419836 is about 518.5311556499.

The spelling of 139419836 in words is "one hundred thirty-nine million, four hundred nineteen thousand, eight hundred thirty-six".