139865714 has 16 divisors (see below), whose sum is σ = 219233088. Its totient is φ = 66796752.

The previous prime is 139865711. The next prime is 139865723. The reversal of 139865714 is 417568931.

It is not an unprimeable number, because it can be changed into a prime (139865711) by changing a digit.

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, 38609 + ... + 42075.

It is an arithmetic number, because the mean of its divisors is an integer number (13702068).

Almost surely, 2^139865714 is an apocalyptic number.

139865714 is a deficient number, since it is larger than the sum of its proper divisors (79367374).

139865714 is a wasteful number, since it uses less digits than its factorization.

139865714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4369.

The product of its digits is 181440, while the sum is 44.

The square root of 139865714 is about 11826.4835855803. The cubic root of 139865714 is about 519.0833382037.

The spelling of 139865714 in words is "one hundred thirty-nine million, eight hundred sixty-five thousand, seven hundred fourteen".