8454561061 has 4 divisors (see below), whose sum is σ = 8454801772. Its totient is φ = 8454320352.

The previous prime is 8454561041. The next prime is 8454561077. The reversal of 8454561061 is 1601654548.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5024116161 + 3430444900 = 70881^2 + 58570^2 .

It is a cyclic number.

It is not a de Polignac number, because 8454561061 - 2⁵ = 8454561029 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 (8454561041) 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, 56310 + ... + 141703.

It is an arithmetic number, because the mean of its divisors is an integer number (2113700443).

Almost surely, 2^8454561061 is an apocalyptic number.

It is an amenable number.

8454561061 is a deficient number, since it is larger than the sum of its proper divisors (240711).

8454561061 is a wasteful number, since it uses less digits than its factorization.

8454561061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240710.

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 8454561061 is about 91948.6871086260. The cubic root of 8454561061 is about 2037.1844617868.

The spelling of 8454561061 in words is "eight billion, four hundred fifty-four million, five hundred sixty-one thousand, sixty-one".