213316047 has 12 divisors (see below), whose sum is σ = 352140880. Its totient is φ = 121894848.

The previous prime is 213316009. The next prime is 213316079. The reversal of 213316047 is 740613312.

213316047 is a `hidden beast` number, since 21 + 3 + 31 + 604 + 7 = 666.

It is not a de Polignac number, because 213316047 - 2⁷ = 213315919 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213316047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213316087) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1692922 + ... + 1693047.

Almost surely, 2^213316047 is an apocalyptic number.

213316047 is a deficient number, since it is larger than the sum of its proper divisors (138824833).

213316047 is a wasteful number, since it uses less digits than its factorization.

213316047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3385982 (or 3385979 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 213316047 is about 14605.3430976475. The cubic root of 213316047 is about 597.5044934683.

Adding to 213316047 its reverse (740613312), we get a palindrome (953929359).

The spelling of 213316047 in words is "two hundred thirteen million, three hundred sixteen thousand, forty-seven".