561459613 has 8 divisors (see below), whose sum is σ = 659617056. Its totient is φ = 471154800.

The previous prime is 561459611. The next prime is 561459667. The reversal of 561459613 is 316954165.

It is a happy number.

It is the 9674-th star number.

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 561459613 - 2¹ = 561459611 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561459611) 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, 1963003 + ... + 1963288.

It is an arithmetic number, because the mean of its divisors is an integer number (82452132).

Almost surely, 2^561459613 is an apocalyptic number.

It is an amenable number.

561459613 is a deficient number, since it is larger than the sum of its proper divisors (98157443).

561459613 is a wasteful number, since it uses less digits than its factorization.

561459613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3926315.

The product of its digits is 97200, while the sum is 40.

The square root of 561459613 is about 23695.1390162624. The cubic root of 561459613 is about 824.9725674380.

The spelling of 561459613 in words is "five hundred sixty-one million, four hundred fifty-nine thousand, six hundred thirteen".