6903139 has 4 divisors (see below), whose sum is σ = 7309224. Its totient is φ = 6497056.

The previous prime is 6903121. The next prime is 6903161. The reversal of 6903139 is 9313096.

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 6903139 - 2⁹ = 6902627 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6903139.

It is not an unprimeable number, because it can be changed into a prime (6903109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203017 + ... + 203050.

It is an arithmetic number, because the mean of its divisors is an integer number (1827306).

Almost surely, 2^6903139 is an apocalyptic number.

6903139 is a deficient number, since it is larger than the sum of its proper divisors (406085).

6903139 is a wasteful number, since it uses less digits than its factorization.

6903139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406084.

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

The square root of 6903139 is about 2627.3825378121. The cubic root of 6903139 is about 190.4066911914.

The spelling of 6903139 in words is "six million, nine hundred three thousand, one hundred thirty-nine".