213880591 has 2 divisors, whose sum is σ = 213880592. Its totient is φ = 213880590.

The previous prime is 213880567. The next prime is 213880603. The reversal of 213880591 is 195088312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213880591 - 2¹¹ = 213878543 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213880591.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213880531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106940295 + 106940296.

It is an arithmetic number, because the mean of its divisors is an integer number (106940296).

Almost surely, 2^213880591 is an apocalyptic number.

213880591 is a deficient number, since it is larger than the sum of its proper divisors (1).

213880591 is an equidigital number, since it uses as much as digits as its factorization.

213880591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 213880591 is about 14624.6569532417. The cubic root of 213880591 is about 598.0311305815.

The spelling of 213880591 in words is "two hundred thirteen million, eight hundred eighty thousand, five hundred ninety-one".