6124331561 has 4 divisors (see below), whose sum is σ = 6210589824. Its totient is φ = 6038073300.

The previous prime is 6124331557. The next prime is 6124331567. The reversal of 6124331561 is 1651334216.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6124331561 - 2² = 6124331557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6124331567) 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, 43129025 + ... + 43129166.

It is an arithmetic number, because the mean of its divisors is an integer number (1552647456).

Almost surely, 2^6124331561 is an apocalyptic number.

It is an amenable number.

6124331561 is a deficient number, since it is larger than the sum of its proper divisors (86258263).

6124331561 is an equidigital number, since it uses as much as digits as its factorization.

6124331561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86258262.

The product of its digits is 12960, while the sum is 32.

The square root of 6124331561 is about 78258.1085958509. The cubic root of 6124331561 is about 1829.5862941507.

Adding to 6124331561 its reverse (1651334216), we get a palindrome (7775665777).

The spelling of 6124331561 in words is "six billion, one hundred twenty-four million, three hundred thirty-one thousand, five hundred sixty-one".