561126313 has 8 divisors (see below), whose sum is σ = 614579616. Its totient is φ = 508080000.

The previous prime is 561126299. The next prime is 561126341. The reversal of 561126313 is 313621165.

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 561126313 - 2⁵ = 561126281 is a prime.

It is a super-3 number, since 3×561126313³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561126343) 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, 98856 + ... + 104377.

It is an arithmetic number, because the mean of its divisors is an integer number (76822452).

Almost surely, 2^561126313 is an apocalyptic number.

It is an amenable number.

561126313 is a deficient number, since it is larger than the sum of its proper divisors (53453303).

561126313 is a wasteful number, since it uses less digits than its factorization.

561126313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203495.

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

The square root of 561126313 is about 23688.1048840974. The cubic root of 561126313 is about 824.8092919460.

Adding to 561126313 its reverse (313621165), we get a palindrome (874747478).

The spelling of 561126313 in words is "five hundred sixty-one million, one hundred twenty-six thousand, three hundred thirteen".