2185454 has 8 divisors (see below), whose sum is σ = 3310320. Its totient is φ = 1082118.

The previous prime is 2185439. The next prime is 2185471. The reversal of 2185454 is 4545812.

2185454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2185454² = 9552418372232, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

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 3 ways as a sum of consecutive naturals, for example, 21167 + ... + 21269.

It is an arithmetic number, because the mean of its divisors is an integer number (413790).

2^2185454 is an apocalyptic number.

2185454 is a deficient number, since it is larger than the sum of its proper divisors (1124866).

2185454 is an frugal number, since it uses more digits than its factorization.

2185454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311 (or 105 counting only the distinct ones).

The product of its digits is 6400, while the sum is 29.

The square root of 2185454 is about 1478.3281097240. The cubic root of 2185454 is about 129.7718681392.

The spelling of 2185454 in words is "two million, one hundred eighty-five thousand, four hundred fifty-four".