109464721 has 4 divisors (see below), whose sum is σ = 109505844. Its totient is φ = 109423600.

The previous prime is 109464701. The next prime is 109464727. The reversal of 109464721 is 127464901.

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 85100625 + 24364096 = 9225^2 + 4936^2 .

It is a cyclic number.

It is not a de Polignac number, because 109464721 - 2²³ = 101076113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109464727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16270 + ... + 21991.

It is an arithmetic number, because the mean of its divisors is an integer number (27376461).

Almost surely, 2^109464721 is an apocalyptic number.

It is an amenable number.

109464721 is a deficient number, since it is larger than the sum of its proper divisors (41123).

109464721 is an equidigital number, since it uses as much as digits as its factorization.

109464721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41122.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 109464721 is about 10462.5389366062. The cubic root of 109464721 is about 478.3635257428.

The spelling of 109464721 in words is "one hundred nine million, four hundred sixty-four thousand, seven hundred twenty-one".