213967255 has 8 divisors (see below), whose sum is σ = 257233392. Its totient is φ = 170858688.

The previous prime is 213967241. The next prime is 213967261. The reversal of 213967255 is 552769312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213967255 - 2⁵ = 213967223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36382 + ... + 41851.

It is an arithmetic number, because the mean of its divisors is an integer number (32154174).

Almost surely, 2^213967255 is an apocalyptic number.

213967255 is a deficient number, since it is larger than the sum of its proper divisors (43266137).

213967255 is an equidigital number, since it uses as much as digits as its factorization.

213967255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78785.

The product of its digits is 113400, while the sum is 40.

The square root of 213967255 is about 14627.6195944521. The cubic root of 213967255 is about 598.1118933583. Note that the first 3 decimals are identical.

The spelling of 213967255 in words is "two hundred thirteen million, nine hundred sixty-seven thousand, two hundred fifty-five".