561144005 has 8 divisors (see below), whose sum is σ = 708813600. Its totient is φ = 425288016.

The previous prime is 561143923. The next prime is 561144013. The reversal of 561144005 is 500441165.

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 561144005 - 2²⁰ = 560095429 is a prime.

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, 2953295 + ... + 2953484.

It is an arithmetic number, because the mean of its divisors is an integer number (88601700).

Almost surely, 2^561144005 is an apocalyptic number.

It is an amenable number.

561144005 is a deficient number, since it is larger than the sum of its proper divisors (147669595).

561144005 is a wasteful number, since it uses less digits than its factorization.

561144005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5906803.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 561144005 is about 23688.4783175281. The cubic root of 561144005 is about 824.8179604474.

The spelling of 561144005 in words is "five hundred sixty-one million, one hundred forty-four thousand, five".