2147205 has 16 divisors (see below), whose sum is σ = 3516480. Its totient is φ = 1118208.

The previous prime is 2147177. The next prime is 2147213. The reversal of 2147205 is 5027412.

It is not a de Polignac number, because 2147205 - 2⁷ = 2147077 is a prime.

It is a super-2 number, since 2×2147205² = 9220978624050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1020 + ... + 2309.

It is an arithmetic number, because the mean of its divisors is an integer number (219780).

2^2147205 is an apocalyptic number.

It is an amenable number.

2147205 is a deficient number, since it is larger than the sum of its proper divisors (1369275).

2147205 is a wasteful number, since it uses less digits than its factorization.

2147205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3380.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 2147205 is about 1465.3344328173. The cubic root of 2147205 is about 129.0103350893.

The spelling of 2147205 in words is "two million, one hundred forty-seven thousand, two hundred five".