2112455 has 8 divisors (see below), whose sum is σ = 2542752. Its totient is φ = 1684768.

The previous prime is 2112419. The next prime is 2112469. The reversal of 2112455 is 5542112.

2112455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2112455 - 2¹⁴ = 2096071 is a prime.

It is a super-2 number, since 2×2112455² = 8924932254050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 2909 + ... + 3561.

It is an arithmetic number, because the mean of its divisors is an integer number (317844).

2^2112455 is an apocalyptic number.

2112455 is a deficient number, since it is larger than the sum of its proper divisors (430297).

2112455 is an equidigital number, since it uses as much as digits as its factorization.

2112455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305.

The product of its digits is 400, while the sum is 20.

The square root of 2112455 is about 1453.4287048218. The cubic root of 2112455 is about 128.3105860996.

Adding to 2112455 its reverse (5542112), we get a palindrome (7654567).

The spelling of 2112455 in words is "two million, one hundred twelve thousand, four hundred fifty-five".