561454613 has 4 divisors (see below), whose sum is σ = 576629100. Its totient is φ = 546280128.

The previous prime is 561454591. The next prime is 561454627. The reversal of 561454613 is 316454165.

561454613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 316454165 = 5 ⋅63290833.

It can be written as a sum of positive squares in 2 ways, for example, as 481495249 + 79959364 = 21943^2 + 8942^2 .

It is a cyclic number.

It is not a de Polignac number, because 561454613 - 2⁶ = 561454549 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 (561454813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7587188 + ... + 7587261.

It is an arithmetic number, because the mean of its divisors is an integer number (144157275).

Almost surely, 2^561454613 is an apocalyptic number.

It is an amenable number.

561454613 is a deficient number, since it is larger than the sum of its proper divisors (15174487).

561454613 is a wasteful number, since it uses less digits than its factorization.

561454613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15174486.

The product of its digits is 43200, while the sum is 35.

The square root of 561454613 is about 23695.0335091555. The cubic root of 561454613 is about 824.9701185382.

The spelling of 561454613 in words is "five hundred sixty-one million, four hundred fifty-four thousand, six hundred thirteen".