6551139 has 16 divisors (see below), whose sum is σ = 10051328. Its totient is φ = 3717792.

The previous prime is 6551117. The next prime is 6551141. The reversal of 6551139 is 9311556.

It is not a de Polignac number, because 6551139 - 2⁷ = 6551011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6551639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2304 + ... + 4290.

It is an arithmetic number, because the mean of its divisors is an integer number (628208).

Almost surely, 2^6551139 is an apocalyptic number.

6551139 is a deficient number, since it is larger than the sum of its proper divisors (3500189).

6551139 is a wasteful number, since it uses less digits than its factorization.

6551139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2154.

The product of its digits is 4050, while the sum is 30.

The square root of 6551139 is about 2559.5192908044. The cubic root of 6551139 is about 187.1137078088.

The spelling of 6551139 in words is "six million, five hundred fifty-one thousand, one hundred thirty-nine".