108554091 has 4 divisors (see below), whose sum is σ = 144738792. Its totient is φ = 72369392.

The previous prime is 108554077. The next prime is 108554107. The reversal of 108554091 is 190455801.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 108554091 - 2¹⁵ = 108521323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (108554021) 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, 18092346 + ... + 18092351.

It is an arithmetic number, because the mean of its divisors is an integer number (36184698).

Almost surely, 2^108554091 is an apocalyptic number.

108554091 is a deficient number, since it is larger than the sum of its proper divisors (36184701).

108554091 is an equidigital number, since it uses as much as digits as its factorization.

108554091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36184700.

The product of its (nonzero) digits is 7200, while the sum is 33.

The square root of 108554091 is about 10418.9294555631. The cubic root of 108554091 is about 477.0333384748.

The spelling of 108554091 in words is "one hundred eight million, five hundred fifty-four thousand, ninety-one".