213134215 has 16 divisors (see below), whose sum is σ = 305008128. Its totient is φ = 139794336.

The previous prime is 213134189. The next prime is 213134227. The reversal of 213134215 is 512431312.

It is a happy number.

213134215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 213134215 - 2⁷ = 213134087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131577 + ... + 133186.

It is an arithmetic number, because the mean of its divisors is an integer number (19063008).

Almost surely, 2^213134215 is an apocalyptic number.

213134215 is a deficient number, since it is larger than the sum of its proper divisors (91873913).

213134215 is a wasteful number, since it uses less digits than its factorization.

213134215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264798.

The product of its digits is 720, while the sum is 22.

The square root of 213134215 is about 14599.1169253486. The cubic root of 213134215 is about 597.3346729551.

Adding to 213134215 its reverse (512431312), we get a palindrome (725565527).

The spelling of 213134215 in words is "two hundred thirteen million, one hundred thirty-four thousand, two hundred fifteen".