561129682 has 8 divisors (see below), whose sum is σ = 842155776. Its totient is φ = 280411092.

The previous prime is 561129677. The next prime is 561129733. The reversal of 561129682 is 286921165.

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

It is a super-2 number, since 2×561129682² = 629733040042842248, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72258 + ... + 79645.

It is an arithmetic number, because the mean of its divisors is an integer number (105269472).

Almost surely, 2^561129682 is an apocalyptic number.

561129682 is a deficient number, since it is larger than the sum of its proper divisors (281026094).

561129682 is a wasteful number, since it uses less digits than its factorization.

561129682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153752.

The product of its digits is 51840, while the sum is 40.

The square root of 561129682 is about 23688.1759956312. The cubic root of 561129682 is about 824.8109426599.

The spelling of 561129682 in words is "five hundred sixty-one million, one hundred twenty-nine thousand, six hundred eighty-two".