213333115 has 4 divisors (see below), whose sum is σ = 255999744. Its totient is φ = 170666488.

The previous prime is 213332993. The next prime is 213333143. The reversal of 213333115 is 511333312.

It is a happy number.

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 213333115 - 2¹⁷ = 213202043 is a prime.

It is a super-2 number, since 2×213333115² = 91022035911206450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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, 21333307 + ... + 21333316.

It is an arithmetic number, because the mean of its divisors is an integer number (63999936).

Almost surely, 2^213333115 is an apocalyptic number.

213333115 is a deficient number, since it is larger than the sum of its proper divisors (42666629).

213333115 is an equidigital number, since it uses as much as digits as its factorization.

213333115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42666628.

The product of its digits is 810, while the sum is 22.

The square root of 213333115 is about 14605.9273926718. The cubic root of 213333115 is about 597.5204290325.

Adding to 213333115 its reverse (511333312), we get a palindrome (724666427).

The spelling of 213333115 in words is "two hundred thirteen million, three hundred thirty-three thousand, one hundred fifteen".