561612126 has 8 divisors (see below), whose sum is σ = 1123224264. Its totient is φ = 187204040.

The previous prime is 561612109. The next prime is 561612179. The reversal of 561612126 is 621216165.

561612126 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

561612126 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 561612093 and 561612102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46801005 + ... + 46801016.

It is an arithmetic number, because the mean of its divisors is an integer number (140403033).

Almost surely, 2^561612126 is an apocalyptic number.

561612126 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

561612126 is a wasteful number, since it uses less digits than its factorization.

561612126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93602026.

The product of its digits is 4320, while the sum is 30.

The square root of 561612126 is about 23698.3570316594. The cubic root of 561612126 is about 825.0472582662.

The spelling of 561612126 in words is "five hundred sixty-one million, six hundred twelve thousand, one hundred twenty-six".