213372293 has 2 divisors, whose sum is σ = 213372294. Its totient is φ = 213372292.

The previous prime is 213372283. The next prime is 213372301. The reversal of 213372293 is 392273312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 190495204 + 22877089 = 13802^2 + 4783^2 .

It is a cyclic number.

It is not a de Polignac number, because 213372293 - 2⁴ = 213372277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213372283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106686146 + 106686147.

It is an arithmetic number, because the mean of its divisors is an integer number (106686147).

Almost surely, 2^213372293 is an apocalyptic number.

It is an amenable number.

213372293 is a deficient number, since it is larger than the sum of its proper divisors (1).

213372293 is an equidigital number, since it uses as much as digits as its factorization.

213372293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 32.

The square root of 213372293 is about 14607.2684989357. The cubic root of 213372293 is about 597.5570044176.

The spelling of 213372293 in words is "two hundred thirteen million, three hundred seventy-two thousand, two hundred ninety-three".