108513281 has 8 divisors (see below), whose sum is σ = 110308224. Its totient is φ = 106732800.

The previous prime is 108513277. The next prime is 108513319. The reversal of 108513281 is 182315801.

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

It is a cyclic number.

It is not a de Polignac number, because 108513281 - 2² = 108513277 is a prime.

It is a super-2 number, since 2×108513281² = 23550264306769922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108518281) 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, 12065 + ... + 19041.

It is an arithmetic number, because the mean of its divisors is an integer number (13788528).

Almost surely, 2^108513281 is an apocalyptic number.

It is an amenable number.

108513281 is a deficient number, since it is larger than the sum of its proper divisors (1794943).

108513281 is a wasteful number, since it uses less digits than its factorization.

108513281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7231.

The product of its (nonzero) digits is 1920, while the sum is 29.

The square root of 108513281 is about 10416.9708168930. The cubic root of 108513281 is about 476.9735520879.

The spelling of 108513281 in words is "one hundred eight million, five hundred thirteen thousand, two hundred eighty-one".