561550134 has 8 divisors (see below), whose sum is σ = 1123100280. Its totient is φ = 187183376.

The previous prime is 561550127. The next prime is 561550139. The reversal of 561550134 is 431055165.

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

561550134 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561550139) 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, 46795839 + ... + 46795850.

It is an arithmetic number, because the mean of its divisors is an integer number (140387535).

Almost surely, 2^561550134 is an apocalyptic number.

561550134 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

561550134 is a wasteful number, since it uses less digits than its factorization.

561550134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93591694.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 561550134 is about 23697.0490567919. The cubic root of 561550134 is about 825.0169002966.

The spelling of 561550134 in words is "five hundred sixty-one million, five hundred fifty thousand, one hundred thirty-four".