109215968 has 24 divisors (see below), whose sum is σ = 219596832. Its totient is φ = 53445376.

The previous prime is 109215961. The next prime is 109215979. The reversal of 109215968 is 869512901.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109215961) 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, 34805 + ... + 37812.

It is an arithmetic number, because the mean of its divisors is an integer number (9149868).

Almost surely, 2^109215968 is an apocalyptic number.

It is an amenable number.

109215968 is an abundant number, since it is smaller than the sum of its proper divisors (110380864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

109215968 is an equidigital number, since it uses as much as digits as its factorization.

109215968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72674 (or 72666 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 41.

The square root of 109215968 is about 10450.6443820465. The cubic root of 109215968 is about 478.0008986754. Note that the first 3 decimals are identical.

The spelling of 109215968 in words is "one hundred nine million, two hundred fifteen thousand, nine hundred sixty-eight".