111242504 has 8 divisors (see below), whose sum is σ = 208579710. Its totient is φ = 55621248.

The previous prime is 111242503. The next prime is 111242533. The reversal of 111242504 is 405242111.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 105472900 + 5769604 = 10270^2 + 2402^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (111242501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6952649 + ... + 6952664.

Almost surely, 2^111242504 is an apocalyptic number.

It is an amenable number.

111242504 is a deficient number, since it is larger than the sum of its proper divisors (97337206).

111242504 is a wasteful number, since it uses less digits than its factorization.

111242504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13905319 (or 13905315 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 111242504 is about 10547.1562043994. The cubic root of 111242504 is about 480.9392834583.

Adding to 111242504 its reverse (405242111), we get a palindrome (516484615).

The spelling of 111242504 in words is "one hundred eleven million, two hundred forty-two thousand, five hundred four".