109948721 has 8 divisors (see below), whose sum is σ = 112743840. Its totient is φ = 107164512.

The previous prime is 109948697. The next prime is 109948733. The reversal of 109948721 is 127849901.

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 109948721 - 2¹⁴ = 109932337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109948771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20045 + ... + 24933.

It is an arithmetic number, because the mean of its divisors is an integer number (14092980).

Almost surely, 2^109948721 is an apocalyptic number.

It is an amenable number.

109948721 is a deficient number, since it is larger than the sum of its proper divisors (2795119).

109948721 is an equidigital number, since it uses as much as digits as its factorization.

109948721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5455.

The product of its (nonzero) digits is 36288, while the sum is 41.

The square root of 109948721 is about 10485.6435663244. The cubic root of 109948721 is about 479.0675198250.

The spelling of 109948721 in words is "one hundred nine million, nine hundred forty-eight thousand, seven hundred twenty-one".