3561231 has 8 divisors (see below), whose sum is σ = 4779184. Its totient is φ = 2358720.

The previous prime is 3561221. The next prime is 3561247. The reversal of 3561231 is 1321653.

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

It is not a de Polignac number, because 3561231 - 2⁶ = 3561167 is a prime.

It is a super-2 number, since 2×3561231² = 25364732470722, 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 = 3561198 and 3561207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3561221) 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 7 ways as a sum of consecutive naturals, for example, 3310 + ... + 4251.

It is an arithmetic number, because the mean of its divisors is an integer number (597398).

Almost surely, 2^3561231 is an apocalyptic number.

3561231 is a deficient number, since it is larger than the sum of its proper divisors (1217953).

3561231 is a wasteful number, since it uses less digits than its factorization.

3561231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7721.

The product of its digits is 540, while the sum is 21.

The square root of 3561231 is about 1887.1224125636. The cubic root of 3561231 is about 152.7097320288.

Adding to 3561231 its reverse (1321653), we get a palindrome (4882884).

The spelling of 3561231 in words is "three million, five hundred sixty-one thousand, two hundred thirty-one".