6139903 has 16 divisors (see below), whose sum is σ = 7729920. Its totient is φ = 4777080.

The previous prime is 6139901. The next prime is 6139921. The reversal of 6139903 is 3099316.

It is not a de Polignac number, because 6139903 - 2¹ = 6139901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6139901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8988 + ... + 9646.

It is an arithmetic number, because the mean of its divisors is an integer number (483120).

Almost surely, 2^6139903 is an apocalyptic number.

6139903 is a deficient number, since it is larger than the sum of its proper divisors (1590017).

6139903 is an equidigital number, since it uses as much as digits as its factorization.

6139903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699 (or 677 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 31.

The square root of 6139903 is about 2477.8827655884. The cubic root of 6139903 is about 183.1135588685.

Subtracting from 6139903 its product of nonzero digits (4374), we obtain a square (6135529 = 2477²).

The spelling of 6139903 in words is "six million, one hundred thirty-nine thousand, nine hundred three".