139027918 has 8 divisors (see below), whose sum is σ = 208597248. Its totient is φ = 69495504.

The previous prime is 139027897. The next prime is 139027949. The reversal of 139027918 is 819720931.

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

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 3 ways as a sum of consecutive naturals, for example, 3955 + ... + 17137.

It is an arithmetic number, because the mean of its divisors is an integer number (26074656).

Almost surely, 2^139027918 is an apocalyptic number.

139027918 is a deficient number, since it is larger than the sum of its proper divisors (69569330).

139027918 is a wasteful number, since it uses less digits than its factorization.

139027918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18458.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 139027918 is about 11791.0100500339. The cubic root of 139027918 is about 518.0448250094.

The spelling of 139027918 in words is "one hundred thirty-nine million, twenty-seven thousand, nine hundred eighteen".