139343078 has 24 divisors (see below), whose sum is σ = 246851856. Its totient is φ = 57786480.

The previous prime is 139343069. The next prime is 139343107. The reversal of 139343078 is 870343931.

It is a Curzon number.

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 11 ways as a sum of consecutive naturals, for example, 8276 + ... + 18632.

It is an arithmetic number, because the mean of its divisors is an integer number (10285494).

Almost surely, 2^139343078 is an apocalyptic number.

139343078 is a deficient number, since it is larger than the sum of its proper divisors (107508778).

139343078 is a wasteful number, since it uses less digits than its factorization.

139343078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10428 (or 10397 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 139343078 is about 11804.3669038200. The cubic root of 139343078 is about 518.4359785645.

The spelling of 139343078 in words is "one hundred thirty-nine million, three hundred forty-three thousand, seventy-eight".