110289997 has 4 divisors (see below), whose sum is σ = 110899516. Its totient is φ = 109680480.

The previous prime is 110289983. The next prime is 110290001. The reversal of 110289997 is 799982011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4076361 + 106213636 = 2019^2 + 10306^2 .

It is a cyclic number.

It is not a de Polignac number, because 110289997 - 2¹⁹ = 109765709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110289937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 304488 + ... + 304849.

It is an arithmetic number, because the mean of its divisors is an integer number (27724879).

Almost surely, 2^110289997 is an apocalyptic number.

It is an amenable number.

110289997 is a deficient number, since it is larger than the sum of its proper divisors (609519).

110289997 is an equidigital number, since it uses as much as digits as its factorization.

110289997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609518.

The product of its (nonzero) digits is 81648, while the sum is 46.

The square root of 110289997 is about 10501.9044463373. The cubic root of 110289997 is about 479.5626760423.

It can be divided in two parts, 11028 and 9997, that added together give a square (21025 = 145²).

The spelling of 110289997 in words is "one hundred ten million, two hundred eighty-nine thousand, nine hundred ninety-seven".