213107307 has 16 divisors (see below), whose sum is σ = 324940032. Its totient is φ = 121698720.

The previous prime is 213107303. The next prime is 213107339. The reversal of 213107307 is 703701312.

It is not a de Polignac number, because 213107307 - 2² = 213107303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213107303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58308 + ... + 61854.

It is an arithmetic number, because the mean of its divisors is an integer number (20308752).

Almost surely, 2^213107307 is an apocalyptic number.

213107307 is a deficient number, since it is larger than the sum of its proper divisors (111832725).

213107307 is a wasteful number, since it uses less digits than its factorization.

213107307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6418.

The product of its (nonzero) digits is 882, while the sum is 24.

The square root of 213107307 is about 14598.1953336705. The cubic root of 213107307 is about 597.3095342449.

Adding to 213107307 its reverse (703701312), we get a palindrome (916808619).

The spelling of 213107307 in words is "two hundred thirteen million, one hundred seven thousand, three hundred seven".