213098255 has 4 divisors (see below), whose sum is σ = 255717912. Its totient is φ = 170478600.

The previous prime is 213098251. The next prime is 213098261. The reversal of 213098255 is 552890312.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 213098255 - 2² = 213098251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213098251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21309821 + ... + 21309830.

It is an arithmetic number, because the mean of its divisors is an integer number (63929478).

Almost surely, 2^213098255 is an apocalyptic number.

213098255 is a deficient number, since it is larger than the sum of its proper divisors (42619657).

213098255 is an equidigital number, since it uses as much as digits as its factorization.

213098255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42619656.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 213098255 is about 14597.8852920551. The cubic root of 213098255 is about 597.3010769681.

The spelling of 213098255 in words is "two hundred thirteen million, ninety-eight thousand, two hundred fifty-five".