213482317 has 2 divisors, whose sum is σ = 213482318. Its totient is φ = 213482316.

The previous prime is 213482287. The next prime is 213482323. The reversal of 213482317 is 713284312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 207187236 + 6295081 = 14394^2 + 2509^2 .

It is a cyclic number.

It is not a de Polignac number, because 213482317 - 2²³ = 205093709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213482417) 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 as a sum of consecutive naturals, namely, 106741158 + 106741159.

It is an arithmetic number, because the mean of its divisors is an integer number (106741159).

Almost surely, 2^213482317 is an apocalyptic number.

It is an amenable number.

213482317 is a deficient number, since it is larger than the sum of its proper divisors (1).

213482317 is an equidigital number, since it uses as much as digits as its factorization.

213482317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 31.

The square root of 213482317 is about 14611.0340838696. The cubic root of 213482317 is about 597.6596955305.

The spelling of 213482317 in words is "two hundred thirteen million, four hundred eighty-two thousand, three hundred seventeen".