108666901 has 4 divisors (see below), whose sum is σ = 124190752. Its totient is φ = 93143052.

The previous prime is 108666889. The next prime is 108666911. The reversal of 108666901 is 109666801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 108666901 - 2¹³ = 108658709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108666911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7761915 + ... + 7761928.

It is an arithmetic number, because the mean of its divisors is an integer number (31047688).

Almost surely, 2^108666901 is an apocalyptic number.

It is an amenable number.

108666901 is a deficient number, since it is larger than the sum of its proper divisors (15523851).

108666901 is an equidigital number, since it uses as much as digits as its factorization.

108666901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15523850.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 108666901 is about 10424.3417537991. The cubic root of 108666901 is about 477.1985264772.

The spelling of 108666901 in words is "one hundred eight million, six hundred sixty-six thousand, nine hundred one".