561234461 has 4 divisors (see below), whose sum is σ = 561341952. Its totient is φ = 561126972.

The previous prime is 561234451. The next prime is 561234497. The reversal of 561234461 is 164432165.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 561234461 - 2¹⁰ = 561233437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561234451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45491 + ... + 56496.

It is an arithmetic number, because the mean of its divisors is an integer number (140335488).

Almost surely, 2^561234461 is an apocalyptic number.

It is an amenable number.

561234461 is a deficient number, since it is larger than the sum of its proper divisors (107491).

561234461 is a wasteful number, since it uses less digits than its factorization.

561234461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107490.

The product of its digits is 17280, while the sum is 32.

The square root of 561234461 is about 23690.3875232129. The cubic root of 561234461 is about 824.8622780819.

The spelling of 561234461 in words is "five hundred sixty-one million, two hundred thirty-four thousand, four hundred sixty-one".