561271046 has 32 divisors (see below), whose sum is σ = 1009428480. Its totient is φ = 228967200.

The previous prime is 561271037. The next prime is 561271049. The reversal of 561271046 is 640172165.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561271049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19091 + ... + 38561.

It is an arithmetic number, because the mean of its divisors is an integer number (31544640).

Almost surely, 2^561271046 is an apocalyptic number.

561271046 is a deficient number, since it is larger than the sum of its proper divisors (448157434).

561271046 is a wasteful number, since it uses less digits than its factorization.

561271046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19580.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 561271046 is about 23691.1596592484. The cubic root of 561271046 is about 824.8802010314.

The spelling of 561271046 in words is "five hundred sixty-one million, two hundred seventy-one thousand, forty-six".