561140626 has 8 divisors (see below), whose sum is σ = 861285744. Its totient is φ = 274045380.

The previous prime is 561140621. The next prime is 561140651. The reversal of 561140626 is 626041165.

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

It is not an unprimeable number, because it can be changed into a prime (561140621) 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 3 ways as a sum of consecutive naturals, for example, 3262360 + ... + 3262531.

It is an arithmetic number, because the mean of its divisors is an integer number (107660718).

Almost surely, 2^561140626 is an apocalyptic number.

561140626 is a deficient number, since it is larger than the sum of its proper divisors (300145118).

561140626 is a wasteful number, since it uses less digits than its factorization.

561140626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6524936.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 561140626 is about 23688.4069958281. The cubic root of 561140626 is about 824.8163048620.

The spelling of 561140626 in words is "five hundred sixty-one million, one hundred forty thousand, six hundred twenty-six".