139993803 has 12 divisors (see below), whose sum is σ = 207145848. Its totient is φ = 91052640.

The previous prime is 139993781. The next prime is 139993877. The reversal of 139993803 is 308399931.

It is not a de Polignac number, because 139993803 - 2⁶ = 139993739 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 not an unprimeable number, because it can be changed into a prime (139993703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 189325 + ... + 190062.

It is an arithmetic number, because the mean of its divisors is an integer number (17262154).

Almost surely, 2^139993803 is an apocalyptic number.

139993803 is a deficient number, since it is larger than the sum of its proper divisors (67152045).

139993803 is a wasteful number, since it uses less digits than its factorization.

139993803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379434 (or 379431 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 45.

The square root of 139993803 is about 11831.8976922555. The cubic root of 139993803 is about 519.2417486706.

The spelling of 139993803 in words is "one hundred thirty-nine million, nine hundred ninety-three thousand, eight hundred three".