213459066 has 24 divisors (see below), whose sum is σ = 465270624. Its totient is φ = 70725960.

The previous prime is 213459049. The next prime is 213459083. The reversal of 213459066 is 660954312.

It is a happy number.

213459066 is a `hidden beast` number, since 2 + 1 + 3 + 4 + 590 + 66 = 666.

It is an interprime number because it is at equal distance from previous prime (213459049) and next prime (213459083).

It is a self number, because there is not a number n which added to its sum of digits gives 213459066.

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 11 ways as a sum of consecutive naturals, for example, 32500 + ... + 38511.

It is an arithmetic number, because the mean of its divisors is an integer number (19386276).

Almost surely, 2^213459066 is an apocalyptic number.

213459066 is an abundant number, since it is smaller than the sum of its proper divisors (251811558).

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

213459066 is a wasteful number, since it uses less digits than its factorization.

213459066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71186 (or 71183 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 213459066 is about 14610.2383964123. The cubic root of 213459066 is about 597.6379971055.

The spelling of 213459066 in words is "two hundred thirteen million, four hundred fifty-nine thousand, sixty-six".