111142485 has 24 divisors (see below), whose sum is σ = 193400064. Its totient is φ = 59044320.

The previous prime is 111142469. The next prime is 111142511. The reversal of 111142485 is 584241111.

It is a happy number.

It is not a de Polignac number, because 111142485 - 2⁴ = 111142469 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7140 + ... + 16530.

It is an arithmetic number, because the mean of its divisors is an integer number (8058336).

Almost surely, 2^111142485 is an apocalyptic number.

111142485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

111142485 is a deficient number, since it is larger than the sum of its proper divisors (82257579).

111142485 is a wasteful number, since it uses less digits than its factorization.

111142485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9665 (or 9662 counting only the distinct ones).

The product of its digits is 1280, while the sum is 27.

The square root of 111142485 is about 10542.4136230751. The cubic root of 111142485 is about 480.7951014887.

Adding to 111142485 its reverse (584241111), we get a palindrome (695383596).

The spelling of 111142485 in words is "one hundred eleven million, one hundred forty-two thousand, four hundred eighty-five".