112215155 has 36 divisors (see below), whose sum is σ = 151348320. Its totient is φ = 79822080.

The previous prime is 112215139. The next prime is 112215157. The reversal of 112215155 is 551512211.

It is not a de Polignac number, because 112215155 - 2⁴ = 112215139 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 112215155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112215157) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1420406 + ... + 1420484.

It is an arithmetic number, because the mean of its divisors is an integer number (4204120).

Almost surely, 2^112215155 is an apocalyptic number.

112215155 is a deficient number, since it is larger than the sum of its proper divisors (39133165).

112215155 is an equidigital number, since it uses as much as digits as its factorization.

112215155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192 (or 138 counting only the distinct ones).

The product of its digits is 500, while the sum is 23.

The square root of 112215155 is about 10593.1654853495. The cubic root of 112215155 is about 482.3369185854.

Adding to 112215155 its reverse (551512211), we get a palindrome (663727366).

The spelling of 112215155 in words is "one hundred twelve million, two hundred fifteen thousand, one hundred fifty-five".