213459813 has 32 divisors (see below), whose sum is σ = 380441600. Its totient is φ = 115555248.

The previous prime is 213459797. The next prime is 213459833. The reversal of 213459813 is 318954312.

213459813 is a `hidden beast` number, since 21 + 34 + 598 + 13 = 666.

213459813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 213459813 - 2⁴ = 213459797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213459833) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26131 + ... + 33312.

It is an arithmetic number, because the mean of its divisors is an integer number (11888800).

Almost surely, 2^213459813 is an apocalyptic number.

It is an amenable number.

213459813 is a deficient number, since it is larger than the sum of its proper divisors (166981787).

213459813 is a wasteful number, since it uses less digits than its factorization.

213459813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59478 (or 59472 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 213459813 is about 14610.2639606545. The cubic root of 213459813 is about 597.6386942494.

The spelling of 213459813 in words is "two hundred thirteen million, four hundred fifty-nine thousand, eight hundred thirteen".