213536655 has 20 divisors (see below), whose sum is σ = 382784952. Its totient is φ = 113886000.

The previous prime is 213536641. The next prime is 213536699. The reversal of 213536655 is 556635312.

It is not a de Polignac number, because 213536655 - 2⁴ = 213536639 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 263221 + ... + 264030.

Almost surely, 2^213536655 is an apocalyptic number.

213536655 is a deficient number, since it is larger than the sum of its proper divisors (169248297).

213536655 is an equidigital number, since it uses as much as digits as its factorization.

213536655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527268 (or 527259 counting only the distinct ones).

The product of its digits is 81000, while the sum is 36.

The square root of 213536655 is about 14612.8934506483. The cubic root of 213536655 is about 597.7103989923.

The spelling of 213536655 in words is "two hundred thirteen million, five hundred thirty-six thousand, six hundred fifty-five".