112001555 has 8 divisors (see below), whose sum is σ = 136408272. Its totient is φ = 88263648.

The previous prime is 112001521. The next prime is 112001557. The reversal of 112001555 is 555100211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 112001555 - 2¹⁰ = 112000531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112001557) 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 in 7 ways as a sum of consecutive naturals, for example, 166832 + ... + 167501.

It is an arithmetic number, because the mean of its divisors is an integer number (17051034).

Almost surely, 2^112001555 is an apocalyptic number.

112001555 is a deficient number, since it is larger than the sum of its proper divisors (24406717).

112001555 is an equidigital number, since it uses as much as digits as its factorization.

112001555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334405.

The product of its (nonzero) digits is 250, while the sum is 20.

The square root of 112001555 is about 10583.0787108478. The cubic root of 112001555 is about 482.0306836409.

Adding to 112001555 its reverse (555100211), we get a palindrome (667101766).

The spelling of 112001555 in words is "one hundred twelve million, one thousand, five hundred fifty-five".