6631201 has 4 divisors (see below), whose sum is σ = 6756372. Its totient is φ = 6506032.

The previous prime is 6631193. The next prime is 6631213. The reversal of 6631201 is 1021366.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1021366 = 2 ⋅510683.

It can be written as a sum of positive squares in 2 ways, for example, as 4835601 + 1795600 = 2199^2 + 1340^2 .

It is a cyclic number.

It is not a de Polignac number, because 6631201 - 2³ = 6631193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6631271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62506 + ... + 62611.

It is an arithmetic number, because the mean of its divisors is an integer number (1689093).

Almost surely, 2^6631201 is an apocalyptic number.

It is an amenable number.

6631201 is a deficient number, since it is larger than the sum of its proper divisors (125171).

6631201 is a wasteful number, since it uses less digits than its factorization.

6631201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125170.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 6631201 is about 2575.1118422313. Note that the first 3 decimals coincide. The cubic root of 6631201 is about 187.8728674957.

Adding to 6631201 its reverse (1021366), we get a palindrome (7652567).

The spelling of 6631201 in words is "six million, six hundred thirty-one thousand, two hundred one".