111553223 has 16 divisors (see below), whose sum is σ = 116962560. Its totient is φ = 106311744.

The previous prime is 111553219. The next prime is 111553249. The reversal of 111553223 is 322355111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 111553223 - 2² = 111553219 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 (111553423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 394040 + ... + 394322.

It is an arithmetic number, because the mean of its divisors is an integer number (7310160).

Almost surely, 2^111553223 is an apocalyptic number.

111553223 is a deficient number, since it is larger than the sum of its proper divisors (5409337).

111553223 is a wasteful number, since it uses less digits than its factorization.

111553223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518.

The product of its digits is 900, while the sum is 23.

The square root of 111553223 is about 10561.8759223918. The cubic root of 111553223 is about 481.3866485965.

The spelling of 111553223 in words is "one hundred eleven million, five hundred fifty-three thousand, two hundred twenty-three".