139281848 has 8 divisors (see below), whose sum is σ = 261153480. Its totient is φ = 69640920.

The previous prime is 139281823. The next prime is 139281893. The reversal of 139281848 is 848182931.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 139281799 and 139281808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8705108 + ... + 8705123.

It is an arithmetic number, because the mean of its divisors is an integer number (32644185).

Almost surely, 2^139281848 is an apocalyptic number.

It is an amenable number.

139281848 is a deficient number, since it is larger than the sum of its proper divisors (121871632).

139281848 is a wasteful number, since it uses less digits than its factorization.

139281848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17410237 (or 17410233 counting only the distinct ones).

The product of its digits is 110592, while the sum is 44.

The square root of 139281848 is about 11801.7730871255. The cubic root of 139281848 is about 518.3600305610.

The spelling of 139281848 in words is "one hundred thirty-nine million, two hundred eighty-one thousand, eight hundred forty-eight".