213252307 has 4 divisors (see below), whose sum is σ = 213403176. Its totient is φ = 213101440.

The previous prime is 213252289. The next prime is 213252353. The reversal of 213252307 is 703252312.

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 213252307 - 2¹¹ = 213250259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213253307) 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, 73294 + ... + 76147.

It is an arithmetic number, because the mean of its divisors is an integer number (53350794).

Almost surely, 2^213252307 is an apocalyptic number.

213252307 is a deficient number, since it is larger than the sum of its proper divisors (150869).

213252307 is a wasteful number, since it uses less digits than its factorization.

213252307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150868.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 213252307 is about 14603.1608564721. The cubic root of 213252307 is about 597.4449750043. Note that the first 3 decimals are identical.

It can be divided in two parts, 21325 and 2307, that added together give a palindrome (23632).

The spelling of 213252307 in words is "two hundred thirteen million, two hundred fifty-two thousand, three hundred seven".