213645486 has 16 divisors (see below), whose sum is σ = 432440064. Its totient is φ = 70356984.

The previous prime is 213645469. The next prime is 213645517. The reversal of 213645486 is 684546312.

213645486 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214006 + ... + 215001.

It is an arithmetic number, because the mean of its divisors is an integer number (27027504).

Almost surely, 2^213645486 is an apocalyptic number.

213645486 is an abundant number, since it is smaller than the sum of its proper divisors (218794578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213645486 is a wasteful number, since it uses less digits than its factorization.

213645486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429095.

The product of its digits is 138240, while the sum is 39.

The square root of 213645486 is about 14616.6167768058. The cubic root of 213645486 is about 597.8119246883.

The spelling of 213645486 in words is "two hundred thirteen million, six hundred forty-five thousand, four hundred eighty-six".