139803 has 4 divisors (see below), whose sum is σ = 186408. Its totient is φ = 93200.

The previous prime is 139801. The next prime is 139813. The reversal of 139803 is 308931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 139803 - 2¹ = 139801 is a prime.

It is a D-number.

139803 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 139803.

It is not an unprimeable number, because it can be changed into a prime (139801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23298 + ... + 23303.

It is an arithmetic number, because the mean of its divisors is an integer number (46602).

2¹³⁹⁸⁰³ is an apocalyptic number.

139803 is a deficient number, since it is larger than the sum of its proper divisors (46605).

139803 is an equidigital number, since it uses as much as digits as its factorization.

139803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46604.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 139803 is about 373.9023936805. The cubic root of 139803 is about 51.9005743158.

The spelling of 139803 in words is "one hundred thirty-nine thousand, eight hundred three".