213628559 has 2 divisors, whose sum is σ = 213628560. Its totient is φ = 213628558.

The previous prime is 213628553. The next prime is 213628567. The reversal of 213628559 is 955826312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213628559 - 2⁴ = 213628543 is a prime.

It is a super-2 number, since 2×213628559² = 91274322440832962, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213628553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106814279 + 106814280.

It is an arithmetic number, because the mean of its divisors is an integer number (106814280).

Almost surely, 2^213628559 is an apocalyptic number.

213628559 is a deficient number, since it is larger than the sum of its proper divisors (1).

213628559 is an equidigital number, since it uses as much as digits as its factorization.

213628559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 41.

The square root of 213628559 is about 14616.0377325731. The cubic root of 213628559 is about 597.7961361814.

The spelling of 213628559 in words is "two hundred thirteen million, six hundred twenty-eight thousand, five hundred fifty-nine".