109199281 has 8 divisors (see below), whose sum is σ = 110492928. Its totient is φ = 107910000.

The previous prime is 109199273. The next prime is 109199303. The reversal of 109199281 is 182991901.

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 109199281 - 2³ = 109199273 is a prime.

It is a super-2 number, since 2×109199281² = 23848965941833922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109199201) 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, 99546 + ... + 100636.

It is an arithmetic number, because the mean of its divisors is an integer number (13811616).

Almost surely, 2^109199281 is an apocalyptic number.

It is an amenable number.

109199281 is a deficient number, since it is larger than the sum of its proper divisors (1293647).

109199281 is a wasteful number, since it uses less digits than its factorization.

109199281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2183.

The product of its (nonzero) digits is 11664, while the sum is 40.

The square root of 109199281 is about 10449.8459797262. The cubic root of 109199281 is about 477.9765530069.

The spelling of 109199281 in words is "one hundred nine million, one hundred ninety-nine thousand, two hundred eighty-one".