139916078 has 8 divisors (see below), whose sum is σ = 213834168. Its totient is φ = 68638024.

The previous prime is 139916071. The next prime is 139916087. The reversal of 139916078 is 870619931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139916071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 659876 + ... + 660087.

It is an arithmetic number, because the mean of its divisors is an integer number (26729271).

Almost surely, 2^139916078 is an apocalyptic number.

139916078 is a deficient number, since it is larger than the sum of its proper divisors (73918090).

139916078 is a wasteful number, since it uses less digits than its factorization.

139916078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320018.

The product of its (nonzero) digits is 81648, while the sum is 44.

The square root of 139916078 is about 11828.6126828128. The cubic root of 139916078 is about 519.1456359968.

The spelling of 139916078 in words is "one hundred thirty-nine million, nine hundred sixteen thousand, seventy-eight".