561634041 has 8 divisors (see below), whose sum is σ = 759103840. Its totient is φ = 369293472.

The previous prime is 561634019. The next prime is 561634043. The reversal of 561634041 is 140436165.

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

It is not a de Polignac number, because 561634041 - 2⁹ = 561633529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561634043) 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, 1282051 + ... + 1282488.

It is an arithmetic number, because the mean of its divisors is an integer number (94887980).

Almost surely, 2^561634041 is an apocalyptic number.

It is an amenable number.

561634041 is a deficient number, since it is larger than the sum of its proper divisors (197469799).

561634041 is a wasteful number, since it uses less digits than its factorization.

561634041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2564615.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 561634041 is about 23698.8194009744. The cubic root of 561634041 is about 825.0579896795.

The spelling of 561634041 in words is "five hundred sixty-one million, six hundred thirty-four thousand, forty-one".