205626213 has 48 divisors (see below), whose sum is σ = 327984384. Its totient is φ = 123379200.

The previous prime is 205626209. The next prime is 205626217. The reversal of 205626213 is 312626502.

205626213 is a `hidden beast` number, since 20 + 5 + 626 + 2 + 13 = 666.

It is an interprime number because it is at equal distance from previous prime (205626209) and next prime (205626217).

It is not a de Polignac number, because 205626213 - 2² = 205626209 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205626217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1361688 + ... + 1361838.

It is an arithmetic number, because the mean of its divisors is an integer number (6833008).

Almost surely, 2^205626213 is an apocalyptic number.

It is an amenable number.

205626213 is a deficient number, since it is larger than the sum of its proper divisors (122358171).

205626213 is a wasteful number, since it uses less digits than its factorization.

205626213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386 (or 383 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 205626213 is about 14339.6726950095. The cubic root of 205626213 is about 590.2366311183.

The spelling of 205626213 in words is "two hundred five million, six hundred twenty-six thousand, two hundred thirteen".