213342293 has 2 divisors, whose sum is σ = 213342294. Its totient is φ = 213342292.

The previous prime is 213342263. The next prime is 213342301. The reversal of 213342293 is 392243312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 186540964 + 26801329 = 13658^2 + 5177^2 .

It is a cyclic number.

It is not a de Polignac number, because 213342293 - 2¹⁴ = 213325909 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213342263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106671146 + 106671147.

It is an arithmetic number, because the mean of its divisors is an integer number (106671147).

Almost surely, 2^213342293 is an apocalyptic number.

It is an amenable number.

213342293 is a deficient number, since it is larger than the sum of its proper divisors (1).

213342293 is an equidigital number, since it uses as much as digits as its factorization.

213342293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 29.

The square root of 213342293 is about 14606.2415768054. The cubic root of 213342293 is about 597.5289977348.

The spelling of 213342293 in words is "two hundred thirteen million, three hundred forty-two thousand, two hundred ninety-three".