213580933 has 2 divisors, whose sum is σ = 213580934. Its totient is φ = 213580932.

The previous prime is 213580891. The next prime is 213580943. The reversal of 213580933 is 339085312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 169052004 + 44528929 = 13002^2 + 6673^2 .

It is a cyclic number.

It is not a de Polignac number, because 213580933 - 2¹³ = 213572741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213580943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106790466 + 106790467.

It is an arithmetic number, because the mean of its divisors is an integer number (106790467).

Almost surely, 2^213580933 is an apocalyptic number.

It is an amenable number.

213580933 is a deficient number, since it is larger than the sum of its proper divisors (1).

213580933 is an equidigital number, since it uses as much as digits as its factorization.

213580933 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 213580933 is about 14614.4084040374. The cubic root of 213580933 is about 597.7517089835.

The spelling of 213580933 in words is "two hundred thirteen million, five hundred eighty thousand, nine hundred thirty-three".