3631143 has 8 divisors (see below), whose sum is σ = 4972528. Its totient is φ = 2355264.

The previous prime is 3631141. The next prime is 3631163. The reversal of 3631143 is 3411363.

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

It is not a de Polignac number, because 3631143 - 2¹ = 3631141 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3631141) 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, 16246 + ... + 16467.

It is an arithmetic number, because the mean of its divisors is an integer number (621566).

Almost surely, 2^3631143 is an apocalyptic number.

3631143 is a deficient number, since it is larger than the sum of its proper divisors (1341385).

3631143 is a wasteful number, since it uses less digits than its factorization.

3631143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32753.

The product of its digits is 648, while the sum is 21.

The square root of 3631143 is about 1905.5558244250. Note that the first 3 decimals coincide. The cubic root of 3631143 is about 153.7025658419.

The spelling of 3631143 in words is "three million, six hundred thirty-one thousand, one hundred forty-three".