108253509 has 16 divisors (see below), whose sum is σ = 177647232. Its totient is φ = 57100608.

The previous prime is 108253493. The next prime is 108253511. The reversal of 108253509 is 905352801.

It is not a de Polignac number, because 108253509 - 2⁴ = 108253493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 108253509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108253529) 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, 197994 + ... + 198539.

It is an arithmetic number, because the mean of its divisors is an integer number (11102952).

Almost surely, 2^108253509 is an apocalyptic number.

It is an amenable number.

108253509 is a deficient number, since it is larger than the sum of its proper divisors (69393723).

108253509 is a wasteful number, since it uses less digits than its factorization.

108253509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396556.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 108253509 is about 10404.4946537542. The cubic root of 108253509 is about 476.5926359565.

The spelling of 108253509 in words is "one hundred eight million, two hundred fifty-three thousand, five hundred nine".