213712007 has 4 divisors (see below), whose sum is σ = 213742080. Its totient is φ = 213681936.

The previous prime is 213711997. The next prime is 213712013. The reversal of 213712007 is 700217312.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 213712007 - 2¹⁴ = 213695623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213712087) 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, 2243 + ... + 20795.

It is an arithmetic number, because the mean of its divisors is an integer number (53435520).

Almost surely, 2^213712007 is an apocalyptic number.

213712007 is a deficient number, since it is larger than the sum of its proper divisors (30073).

213712007 is a wasteful number, since it uses less digits than its factorization.

213712007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30072.

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 213712007 is about 14618.8921262865. The cubic root of 213712007 is about 597.8739634754.

Adding to 213712007 its reverse (700217312), we get a palindrome (913929319).

The spelling of 213712007 in words is "two hundred thirteen million, seven hundred twelve thousand, seven".