213271307 has 12 divisors (see below), whose sum is σ = 234376080. Its totient is φ = 193796736.

The previous prime is 213271301. The next prime is 213271313. The reversal of 213271307 is 703172312.

It is an interprime number because it is at equal distance from previous prime (213271301) and next prime (213271313).

It is not a de Polignac number, because 213271307 - 2¹⁸ = 213009163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213271301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4343 + ... + 21104.

It is an arithmetic number, because the mean of its divisors is an integer number (19531340).

Almost surely, 2^213271307 is an apocalyptic number.

213271307 is a deficient number, since it is larger than the sum of its proper divisors (21104773).

213271307 is a wasteful number, since it uses less digits than its factorization.

213271307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25510 (or 25493 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 213271307 is about 14603.8113860732. The cubic root of 213271307 is about 597.4627178642.

The spelling of 213271307 in words is "two hundred thirteen million, two hundred seventy-one thousand, three hundred seven".