5631229 has 4 divisors (see below), whose sum is σ = 5637820. Its totient is φ = 5624640.

The previous prime is 5631221. The next prime is 5631257. The reversal of 5631229 is 9221365.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1750329 + 3880900 = 1323^2 + 1970^2 .

It is a cyclic number.

It is not a de Polignac number, because 5631229 - 2³ = 5631221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5631197 and 5631206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5631221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1782 + ... + 3799.

It is an arithmetic number, because the mean of its divisors is an integer number (1409455).

Almost surely, 2^5631229 is an apocalyptic number.

It is an amenable number.

5631229 is a deficient number, since it is larger than the sum of its proper divisors (6591).

5631229 is a wasteful number, since it uses less digits than its factorization.

5631229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6590.

The product of its digits is 3240, while the sum is 28.

The square root of 5631229 is about 2373.0210702815. The cubic root of 5631229 is about 177.9102880841.

The spelling of 5631229 in words is "five million, six hundred thirty-one thousand, two hundred twenty-nine".