561000117 has 8 divisors (see below), whose sum is σ = 748555200. Its totient is φ = 373722560.

The previous prime is 561000101. The next prime is 561000127. The reversal of 561000117 is 711000165.

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

It is a cyclic number.

It is not a de Polignac number, because 561000117 - 2⁴ = 561000101 is a prime.

It is a super-2 number, since 2×561000117² = 629442262548027378, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 561000093 and 561000102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561000127) 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, 64617 + ... + 72782.

It is an arithmetic number, because the mean of its divisors is an integer number (93569400).

Almost surely, 2^561000117 is an apocalyptic number.

It is an amenable number.

561000117 is a deficient number, since it is larger than the sum of its proper divisors (187555083).

561000117 is a wasteful number, since it uses less digits than its factorization.

561000117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138763.

The product of its (nonzero) digits is 210, while the sum is 21.

The square root of 561000117 is about 23685.4410345258. The cubic root of 561000117 is about 824.7474547476.

The spelling of 561000117 in words is "five hundred sixty-one million, one hundred seventeen", and thus it is an aban number.