215255143 has 2 divisors, whose sum is σ = 215255144. Its totient is φ = 215255142.

The previous prime is 215255141. The next prime is 215255147. The reversal of 215255143 is 341552512.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 215255143 - 2¹ = 215255141 is a prime.

Together with 215255141, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (215255141) by changing a digit.

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 as a sum of consecutive naturals, namely, 107627571 + 107627572.

It is an arithmetic number, because the mean of its divisors is an integer number (107627572).

Almost surely, 2^215255143 is an apocalyptic number.

215255143 is a deficient number, since it is larger than the sum of its proper divisors (1).

215255143 is an equidigital number, since it uses as much as digits as its factorization.

215255143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6000, while the sum is 28.

The square root of 215255143 is about 14671.5760230454. The cubic root of 215255143 is about 599.3095233006.

The spelling of 215255143 in words is "two hundred fifteen million, two hundred fifty-five thousand, one hundred forty-three".