213153211 has 4 divisors (see below), whose sum is σ = 216073192. Its totient is φ = 210233232.

The previous prime is 213153209. The next prime is 213153221. The reversal of 213153211 is 112351312.

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 213153211 - 2¹ = 213153209 is a prime.

It is a super-2 number, since 2×213153211² = 90868582719221042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213153221) 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, 1459881 + ... + 1460026.

It is an arithmetic number, because the mean of its divisors is an integer number (54018298).

Almost surely, 2^213153211 is an apocalyptic number.

213153211 is a deficient number, since it is larger than the sum of its proper divisors (2919981).

213153211 is an equidigital number, since it uses as much as digits as its factorization.

213153211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2919980.

The product of its digits is 180, while the sum is 19.

The square root of 213153211 is about 14599.7674981487. The cubic root of 213153211 is about 597.3524186314.

The spelling of 213153211 in words is "two hundred thirteen million, one hundred fifty-three thousand, two hundred eleven".