108240133 has 8 divisors (see below), whose sum is σ = 111412352. Its totient is φ = 105080976.

The previous prime is 108240053. The next prime is 108240149. The reversal of 108240133 is 331042801.

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

It is a 8-Lehmer number, since φ(108240133) divides (108240133-1)⁸.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108240133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108240163) 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, 15016 + ... + 21022.

It is an arithmetic number, because the mean of its divisors is an integer number (13926544).

Almost surely, 2^108240133 is an apocalyptic number.

108240133 is the 6007-th octagonal number.

It is an amenable number.

108240133 is a deficient number, since it is larger than the sum of its proper divisors (3172219).

108240133 is an equidigital number, since it uses as much as digits as its factorization.

108240133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6531.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 108240133 is about 10403.8518347773. The cubic root of 108240133 is about 476.5730055977.

Adding to 108240133 its reverse (331042801), we get a palindrome (439282934).

The spelling of 108240133 in words is "one hundred eight million, two hundred forty thousand, one hundred thirty-three".