561786134 has 16 divisors (see below), whose sum is σ = 1037143968. Its totient is φ = 222244992.

The previous prime is 561786119. The next prime is 561786161. The reversal of 561786134 is 431687165.

It is a junction number, because it is equal to n+sod(n) for n = 561786091 and 561786100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1543187 + ... + 1543550.

It is an arithmetic number, because the mean of its divisors is an integer number (64821498).

Almost surely, 2^561786134 is an apocalyptic number.

561786134 is a deficient number, since it is larger than the sum of its proper divisors (475357834).

561786134 is a wasteful number, since it uses less digits than its factorization.

561786134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3086759.

The product of its digits is 120960, while the sum is 41.

The square root of 561786134 is about 23702.0280566875. The cubic root of 561786134 is about 825.1324594172.

The spelling of 561786134 in words is "five hundred sixty-one million, seven hundred eighty-six thousand, one hundred thirty-four".