109440215 has 8 divisors (see below), whose sum is σ = 131393760. Its totient is φ = 87508512.

The previous prime is 109440211. The next prime is 109440223. The reversal of 109440215 is 512044901.

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 109440215 - 2² = 109440211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109440211) 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, 9101 + ... + 17369.

It is an arithmetic number, because the mean of its divisors is an integer number (16424220).

Almost surely, 2^109440215 is an apocalyptic number.

109440215 is a deficient number, since it is larger than the sum of its proper divisors (21953545).

109440215 is an equidigital number, since it uses as much as digits as its factorization.

109440215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10921.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 109440215 is about 10461.3677404056. The cubic root of 109440215 is about 478.3278258042.

The spelling of 109440215 in words is "one hundred nine million, four hundred forty thousand, two hundred fifteen".