561127 has 8 divisors (see below), whose sum is σ = 675200. Its totient is φ = 455544.

The previous prime is 561109. The next prime is 561161. The reversal of 561127 is 721165.

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

It is a de Polignac number, because none of the positive numbers 2^k-561127 is a prime.

It is a Duffinian number.

561127 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 561098 and 561107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564127) 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, 1977 + ... + 2242.

It is an arithmetic number, because the mean of its divisors is an integer number (84400).

2⁵⁶¹¹²⁷ is an apocalyptic number.

561127 is a deficient number, since it is larger than the sum of its proper divisors (114073).

561127 is a wasteful number, since it uses less digits than its factorization.

561127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4245.

The product of its digits is 420, while the sum is 22.

The square root of 561127 is about 749.0841074272. The cubic root of 561127 is about 82.4809628557.

The spelling of 561127 in words is "five hundred sixty-one thousand, one hundred twenty-seven".