3561428231 has 8 divisors (see below), whose sum is σ = 3616972704. Its totient is φ = 3506033440.

The previous prime is 3561428161. The next prime is 3561428251. The reversal of 3561428231 is 1328241653.

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

It is a cyclic number.

It is not a de Polignac number, because 3561428231 - 2¹⁸ = 3561166087 is a prime.

It is a super-2 number, since 2×3561428231² = 25367542089127578722, 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 = 3561428191 and 3561428200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3561428251) 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, 11021 + ... + 85113.

It is an arithmetic number, because the mean of its divisors is an integer number (452121588).

Almost surely, 2^3561428231 is an apocalyptic number.

3561428231 is a deficient number, since it is larger than the sum of its proper divisors (55544473).

3561428231 is an equidigital number, since it uses as much as digits as its factorization.

3561428231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74841.

The product of its digits is 34560, while the sum is 35.

The square root of 3561428231 is about 59677.7029635022. The cubic root of 3561428231 is about 1527.1255114171.

Adding to 3561428231 its reverse (1328241653), we get a palindrome (4889669884).

The spelling of 3561428231 in words is "three billion, five hundred sixty-one million, four hundred twenty-eight thousand, two hundred thirty-one".