115444561 has 8 divisors (see below), whose sum is σ = 118868904. Its totient is φ = 112049280.

The previous prime is 115444507. The next prime is 115444577. The reversal of 115444561 is 165444511.

It can be written as a sum of positive squares in 4 ways, for example, as 547600 + 114896961 = 740^2 + 10719^2 .

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 115444561 - 2¹³ = 115436369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115444591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 931 + ... + 15223.

It is an arithmetic number, because the mean of its divisors is an integer number (14858613).

Almost surely, 2^115444561 is an apocalyptic number.

It is an amenable number.

115444561 is a deficient number, since it is larger than the sum of its proper divisors (3424343).

115444561 is a wasteful number, since it uses less digits than its factorization.

115444561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14531.

The product of its digits is 9600, while the sum is 31.

The square root of 115444561 is about 10744.5130648159. The cubic root of 115444561 is about 486.9202378974.

The spelling of 115444561 in words is "one hundred fifteen million, four hundred forty-four thousand, five hundred sixty-one".