213545312 has 24 divisors (see below), whose sum is σ = 421708392. Its totient is φ = 106444800.

The previous prime is 213545309. The next prime is 213545359.

It is a happy number.

213545312 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 512 + ... + 20672.

It is an arithmetic number, because the mean of its divisors is an integer number (17571183).

Almost surely, 2^213545312 is an apocalyptic number.

It is an amenable number.

213545312 is a deficient number, since it is larger than the sum of its proper divisors (208163080).

213545312 is a wasteful number, since it uses less digits than its factorization.

213545312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20502 (or 20494 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 213545312 is about 14613.1896586611. The cubic root of 213545312 is about 597.7184761520.

The spelling of 213545312 in words is "two hundred thirteen million, five hundred forty-five thousand, three hundred twelve".