108551409 has 16 divisors (see below), whose sum is σ = 153850752. Its totient is φ = 67843328.

The previous prime is 108551381. The next prime is 108551411. The reversal of 108551409 is 904155801.

It is not a de Polignac number, because 108551409 - 2⁷ = 108551281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 108551409.

It is not an unprimeable number, because it can be changed into a prime (108591409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9367 + ... + 17459.

It is an arithmetic number, because the mean of its divisors is an integer number (9615672).

Almost surely, 2^108551409 is an apocalyptic number.

It is an amenable number.

108551409 is a deficient number, since it is larger than the sum of its proper divisors (45299343).

108551409 is a wasteful number, since it uses less digits than its factorization.

108551409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8376.

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

The square root of 108551409 is about 10418.8007467270. The cubic root of 108551409 is about 477.0294098221.

The spelling of 108551409 in words is "one hundred eight million, five hundred fifty-one thousand, four hundred nine".