111697489 has 4 divisors (see below), whose sum is σ = 114421860. Its totient is φ = 108973120.

The previous prime is 111697483. The next prime is 111697507. The reversal of 111697489 is 984796111.

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 34398225 + 77299264 = 5865^2 + 8792^2 .

It is a cyclic number.

It is not a de Polignac number, because 111697489 - 2¹⁷ = 111566417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111697483) 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, 1362124 + ... + 1362205.

It is an arithmetic number, because the mean of its divisors is an integer number (28605465).

Almost surely, 2^111697489 is an apocalyptic number.

It is an amenable number.

111697489 is a deficient number, since it is larger than the sum of its proper divisors (2724371).

111697489 is an equidigital number, since it uses as much as digits as its factorization.

111697489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2724370.

The product of its digits is 108864, while the sum is 46.

The square root of 111697489 is about 10568.7032790215. The cubic root of 111697489 is about 481.5940766689.

The spelling of 111697489 in words is "one hundred eleven million, six hundred ninety-seven thousand, four hundred eighty-nine".