561115274 has 8 divisors (see below), whose sum is σ = 851130180. Its totient is φ = 277405216.

The previous prime is 561115273. The next prime is 561115319. The reversal of 561115274 is 472511165.

It can be written as a sum of positive squares in 2 ways, for example, as 538008025 + 23107249 = 23195^2 + 4807^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 561115274.

It is not an unprimeable number, because it can be changed into a prime (561115273) 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, 1575989 + ... + 1576344.

Almost surely, 2^561115274 is an apocalyptic number.

561115274 is a deficient number, since it is larger than the sum of its proper divisors (290014906).

561115274 is a wasteful number, since it uses less digits than its factorization.

561115274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3152424.

The product of its digits is 8400, while the sum is 32.

The square root of 561115274 is about 23687.8718757089. The cubic root of 561115274 is about 824.8038831047.

The spelling of 561115274 in words is "five hundred sixty-one million, one hundred fifteen thousand, two hundred seventy-four".