213641027 has 4 divisors (see below), whose sum is σ = 214714800. Its totient is φ = 212567256.

The previous prime is 213641011. The next prime is 213641083. The reversal of 213641027 is 720146312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 213641027 - 2⁴ = 213641011 is a prime.

It is a super-2 number, since 2×213641027² = 91284976835229458, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213640987 and 213641005.

It is not an unprimeable number, because it can be changed into a prime (213641327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536588 + ... + 536985.

It is an arithmetic number, because the mean of its divisors is an integer number (53678700).

Almost surely, 2^213641027 is an apocalyptic number.

213641027 is a deficient number, since it is larger than the sum of its proper divisors (1073773).

213641027 is a wasteful number, since it uses less digits than its factorization.

213641027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073772.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 213641027 is about 14616.4642441324. The cubic root of 213641027 is about 597.8077656771.

Adding to 213641027 its reverse (720146312), we get a palindrome (933787339).

The spelling of 213641027 in words is "two hundred thirteen million, six hundred forty-one thousand, twenty-seven".