112155665 has 4 divisors (see below), whose sum is σ = 134586804. Its totient is φ = 89724528.

The previous prime is 112155661. The next prime is 112155671. The reversal of 112155665 is 566551211.

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

It can be written as a sum of positive squares in 2 ways, for example, as 48539089 + 63616576 = 6967^2 + 7976^2 .

It is a cyclic number.

It is not a de Polignac number, because 112155665 - 2² = 112155661 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (112155661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11215562 + ... + 11215571.

It is an arithmetic number, because the mean of its divisors is an integer number (33646701).

Almost surely, 2^112155665 is an apocalyptic number.

It is an amenable number.

112155665 is a deficient number, since it is larger than the sum of its proper divisors (22431139).

112155665 is an equidigital number, since it uses as much as digits as its factorization.

112155665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22431138.

The product of its digits is 9000, while the sum is 32.

The square root of 112155665 is about 10590.3571705585. The cubic root of 112155665 is about 482.2516677847.

The spelling of 112155665 in words is "one hundred twelve million, one hundred fifty-five thousand, six hundred sixty-five".