111025 has 6 divisors (see below), whose sum is σ = 137702. Its totient is φ = 88800.

The previous prime is 110989. The next prime is 111029. The reversal of 111025 is 520111.

It is a happy number.

111025 is nontrivially palindromic in base 16.

It can be written as a sum of positive squares in 3 ways, for example, as 4096 + 106929 = 64^2 + 327^2 .

It is a de Polignac number, because none of the positive numbers 2^k-111025 is a prime.

It is a Duffinian number.

111025 is an undulating number in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111029) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2196 + ... + 2245.

2¹¹¹⁰²⁵ is an apocalyptic number.

It is an amenable number.

111025 is a deficient number, since it is larger than the sum of its proper divisors (26677).

111025 is an equidigital number, since it uses as much as digits as its factorization.

111025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4451 (or 4446 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 10.

The square root of 111025 is about 333.2041416309. The cubic root of 111025 is about 48.0625630959.

Adding to 111025 its reverse (520111), we get a palindrome (631136).

It can be divided in two parts, 1 and 11025, that added together give a triangular number (11026 = T₁₄₈).

The spelling of 111025 in words is "one hundred eleven thousand, twenty-five".