111132155 has 4 divisors (see below), whose sum is σ = 133358592. Its totient is φ = 88905720.

The previous prime is 111132139. The next prime is 111132169. The reversal of 111132155 is 551231111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 111132155 - 2⁴ = 111132139 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11113211 + ... + 11113220.

It is an arithmetic number, because the mean of its divisors is an integer number (33339648).

Almost surely, 2^111132155 is an apocalyptic number.

111132155 is a deficient number, since it is larger than the sum of its proper divisors (22226437).

111132155 is an equidigital number, since it uses as much as digits as its factorization.

111132155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22226436.

The product of its digits is 150, while the sum is 20.

The square root of 111132155 is about 10541.9236859313. The cubic root of 111132155 is about 480.7802053930.

Adding to 111132155 its reverse (551231111), we get a palindrome (662363266).

The spelling of 111132155 in words is "one hundred eleven million, one hundred thirty-two thousand, one hundred fifty-five".