213571007 has 4 divisors (see below), whose sum is σ = 229999560. Its totient is φ = 197142456.

The previous prime is 213570989. The next prime is 213571021. The reversal of 213571007 is 700175312.

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 213571007 - 2⁸ = 213570751 is a prime.

It is a super-2 number, since 2×213571007² = 91225150061988098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213571027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8214257 + ... + 8214282.

It is an arithmetic number, because the mean of its divisors is an integer number (57499890).

Almost surely, 2^213571007 is an apocalyptic number.

213571007 is a deficient number, since it is larger than the sum of its proper divisors (16428553).

213571007 is a wasteful number, since it uses less digits than its factorization.

213571007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16428552.

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 213571007 is about 14614.0688037247. The cubic root of 213571007 is about 597.7424488320.

The spelling of 213571007 in words is "two hundred thirteen million, five hundred seventy-one thousand, seven".