6651131 has 8 divisors (see below), whose sum is σ = 7076160. Its totient is φ = 6229888.

The previous prime is 6651119. The next prime is 6651133. The reversal of 6651131 is 1311566.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-6651131 is a prime.

It is a super-2 number, since 2×6651131² = 88475087158322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6651097 and 6651106.

It is not an unprimeable number, because it can be changed into a prime (6651133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3245 + ... + 4881.

It is an arithmetic number, because the mean of its divisors is an integer number (884520).

Almost surely, 2^6651131 is an apocalyptic number.

6651131 is a deficient number, since it is larger than the sum of its proper divisors (425029).

6651131 is a wasteful number, since it uses less digits than its factorization.

6651131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1893.

The product of its digits is 540, while the sum is 23.

The square root of 6651131 is about 2578.9786738164. The cubic root of 6651131 is about 188.0608958455.

Adding to 6651131 its reverse (1311566), we get a palindrome (7962697).

The spelling of 6651131 in words is "six million, six hundred fifty-one thousand, one hundred thirty-one".