109463561 has 4 divisors (see below), whose sum is σ = 115902612. Its totient is φ = 103024512.

The previous prime is 109463539. The next prime is 109463567. The reversal of 109463561 is 165364901.

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 38987536 + 70476025 = 6244^2 + 8395^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109463561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109463567) 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, 3219500 + ... + 3219533.

It is an arithmetic number, because the mean of its divisors is an integer number (28975653).

Almost surely, 2^109463561 is an apocalyptic number.

It is an amenable number.

109463561 is a deficient number, since it is larger than the sum of its proper divisors (6439051).

109463561 is an equidigital number, since it uses as much as digits as its factorization.

109463561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6439050.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 109463561 is about 10462.4835005844. The cubic root of 109463561 is about 478.3618359940.

The spelling of 109463561 in words is "one hundred nine million, four hundred sixty-three thousand, five hundred sixty-one".