213435812 has 12 divisors (see below), whose sum is σ = 374315760. Its totient is φ = 106488456.

The previous prime is 213435787. The next prime is 213435821. The reversal of 213435812 is 218534312.

It is a happy 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, 55262 + ... + 58997.

It is an arithmetic number, because the mean of its divisors is an integer number (31192980).

Almost surely, 2^213435812 is an apocalyptic number.

It is an amenable number.

213435812 is a deficient number, since it is larger than the sum of its proper divisors (160879948).

213435812 is a wasteful number, since it uses less digits than its factorization.

213435812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114730 (or 114728 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 213435812 is about 14609.4425629454. The cubic root of 213435812 is about 597.6162943048.

The spelling of 213435812 in words is "two hundred thirteen million, four hundred thirty-five thousand, eight hundred twelve".