213306027 has 16 divisors (see below), whose sum is σ = 326593920. Its totient is φ = 122472000.

The previous prime is 213306013. The next prime is 213306029. The reversal of 213306027 is 720603312.

It is not a de Polignac number, because 213306027 - 2⁷ = 213305899 is a prime.

It is a super-2 number, since 2×213306027² = 90998922309049458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213305988 and 213306006.

It is not an unprimeable number, because it can be changed into a prime (213306029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169474 + ... + 170727.

It is an arithmetic number, because the mean of its divisors is an integer number (20412120).

Almost surely, 2^213306027 is an apocalyptic number.

213306027 is a deficient number, since it is larger than the sum of its proper divisors (113287893).

213306027 is a wasteful number, since it uses less digits than its factorization.

213306027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340234.

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 213306027 is about 14605.0000684697. Note that the first 4 decimals coincide. The cubic root of 213306027 is about 597.4951378840.

Adding to 213306027 its reverse (720603312), we get a palindrome (933909339).

The spelling of 213306027 in words is "two hundred thirteen million, three hundred six thousand, twenty-seven".