109102281 has 4 divisors (see below), whose sum is σ = 145469712. Its totient is φ = 72734852.

The previous prime is 109102261. The next prime is 109102289. The reversal of 109102281 is 182201901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 109102281 - 2²² = 104907977 is a prime.

It is a super-2 number, since 2×109102281² = 23806615438805922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (109102289) 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, 18183711 + ... + 18183716.

It is an arithmetic number, because the mean of its divisors is an integer number (36367428).

Almost surely, 2^109102281 is an apocalyptic number.

It is an amenable number.

109102281 is a deficient number, since it is larger than the sum of its proper divisors (36367431).

109102281 is an equidigital number, since it uses as much as digits as its factorization.

109102281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36367430.

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 109102281 is about 10445.2037318570. The cubic root of 109102281 is about 477.8349847351.

The spelling of 109102281 in words is "one hundred nine million, one hundred two thousand, two hundred eighty-one".