139872663 has 20 divisors (see below), whose sum is σ = 238795920. Its totient is φ = 79926912.

The previous prime is 139872653. The next prime is 139872673. The reversal of 139872663 is 366278931.

It is an interprime number because it is at equal distance from previous prime (139872653) and next prime (139872673).

It is not a de Polignac number, because 139872663 - 2⁵ = 139872631 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139872613) 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 19 ways as a sum of consecutive naturals, for example, 122778 + ... + 123911.

It is an arithmetic number, because the mean of its divisors is an integer number (11939796).

Almost surely, 2^139872663 is an apocalyptic number.

139872663 is a deficient number, since it is larger than the sum of its proper divisors (98923257).

139872663 is an equidigital number, since it uses as much as digits as its factorization.

139872663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246708 (or 246699 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 139872663 is about 11826.7773717104. Note that the first 3 decimals coincide. The cubic root of 139872663 is about 519.0919346645.

The spelling of 139872663 in words is "one hundred thirty-nine million, eight hundred seventy-two thousand, six hundred sixty-three".