108665121 has 8 divisors (see below), whose sum is σ = 145019680. Its totient is φ = 72376992.

The previous prime is 108665113. The next prime is 108665131. The reversal of 108665121 is 121566801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 108665121 - 2³ = 108665113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108665131) 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, 12655 + ... + 19428.

It is an arithmetic number, because the mean of its divisors is an integer number (18127460).

Almost surely, 2^108665121 is an apocalyptic number.

It is an amenable number.

108665121 is a deficient number, since it is larger than the sum of its proper divisors (36354559).

108665121 is a wasteful number, since it uses less digits than its factorization.

108665121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33215.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 108665121 is about 10424.2563763561. The cubic root of 108665121 is about 477.1959209061.

The spelling of 108665121 in words is "one hundred eight million, six hundred sixty-five thousand, one hundred twenty-one".