213313097 has 2 divisors, whose sum is σ = 213313098. Its totient is φ = 213313096.

The previous prime is 213313091. The next prime is 213313099. The reversal of 213313097 is 790313312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 205606921 + 7706176 = 14339^2 + 2776^2 .

It is a cyclic number.

It is not a de Polignac number, because 213313097 - 2¹² = 213309001 is a prime.

Together with 213313099, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (213313091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106656548 + 106656549.

It is an arithmetic number, because the mean of its divisors is an integer number (106656549).

Almost surely, 2^213313097 is an apocalyptic number.

It is an amenable number.

213313097 is a deficient number, since it is larger than the sum of its proper divisors (1).

213313097 is an equidigital number, since it uses as much as digits as its factorization.

213313097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402, while the sum is 29.

The square root of 213313097 is about 14605.2421068601. The cubic root of 213313097 is about 597.5017391101.

The spelling of 213313097 in words is "two hundred thirteen million, three hundred thirteen thousand, ninety-seven".