213641463 has 32 divisors (see below), whose sum is σ = 343180800. Its totient is φ = 115629696.

The previous prime is 213641423. The next prime is 213641473. The reversal of 213641463 is 364146312.

It is not a de Polignac number, because 213641463 - 2¹⁰ = 213640439 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213641463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213641413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28968 + ... + 35586.

It is an arithmetic number, because the mean of its divisors is an integer number (10724400).

Almost surely, 2^213641463 is an apocalyptic number.

213641463 is a deficient number, since it is larger than the sum of its proper divisors (129539337).

213641463 is a wasteful number, since it uses less digits than its factorization.

213641463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6711.

The product of its digits is 10368, while the sum is 30.

The square root of 213641463 is about 14616.4791588125. The cubic root of 213641463 is about 597.8081723468.

Adding to 213641463 its reverse (364146312), we get a palindrome (577787775).

The spelling of 213641463 in words is "two hundred thirteen million, six hundred forty-one thousand, four hundred sixty-three".