213538459 has 2 divisors, whose sum is σ = 213538460. Its totient is φ = 213538458.

The previous prime is 213538453. The next prime is 213538477. The reversal of 213538459 is 954835312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213538459 - 2⁷ = 213538331 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (213538453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106769229 + 106769230.

It is an arithmetic number, because the mean of its divisors is an integer number (106769230).

Almost surely, 2^213538459 is an apocalyptic number.

213538459 is a deficient number, since it is larger than the sum of its proper divisors (1).

213538459 is an equidigital number, since it uses as much as digits as its factorization.

213538459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 40.

The square root of 213538459 is about 14612.9551768285. The cubic root of 213538459 is about 597.7120821796.

The spelling of 213538459 in words is "two hundred thirteen million, five hundred thirty-eight thousand, four hundred fifty-nine".