139987107 has 12 divisors (see below), whose sum is σ = 217757904. Its totient is φ = 86145840.

The previous prime is 139987093. The next prime is 139987153. The reversal of 139987107 is 701789931.

It is not a de Polignac number, because 139987107 - 2¹⁰ = 139986083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (139987157) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 598119 + ... + 598352.

It is an arithmetic number, because the mean of its divisors is an integer number (18146492).

Almost surely, 2^139987107 is an apocalyptic number.

139987107 is a deficient number, since it is larger than the sum of its proper divisors (77770797).

139987107 is a wasteful number, since it uses less digits than its factorization.

139987107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196490 (or 1196487 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 45.

The square root of 139987107 is about 11831.6147249646. The cubic root of 139987107 is about 519.2334699752.

The spelling of 139987107 in words is "one hundred thirty-nine million, nine hundred eighty-seven thousand, one hundred seven".