6631146 has 20 divisors (see below), whose sum is σ = 14859042. Its totient is φ = 2210328.

The previous prime is 6631129. The next prime is 6631147. The reversal of 6631146 is 6411366.

It can be written as a sum of positive squares in only one way, i.e., 6125625 + 505521 = 2475^2 + 711^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (6631147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 20305 + ... + 20628.

Almost surely, 2^6631146 is an apocalyptic number.

6631146 is an abundant number, since it is smaller than the sum of its proper divisors (8227896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6631146 is a wasteful number, since it uses less digits than its factorization.

6631146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40947 (or 40938 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 6631146 is about 2575.1011630614. The cubic root of 6631146 is about 187.8723480807.

The spelling of 6631146 in words is "six million, six hundred thirty-one thousand, one hundred forty-six".