214353505 has 4 divisors (see below), whose sum is σ = 257224212. Its totient is φ = 171482800.

The previous prime is 214353481. The next prime is 214353523. The reversal of 214353505 is 505353412.

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

It can be written as a sum of positive squares in 2 ways, for example, as 23001616 + 191351889 = 4796^2 + 13833^2 .

It is not a de Polignac number, because 214353505 - 2²⁷ = 80135777 is a prime.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 21435346 + ... + 21435355.

It is an arithmetic number, because the mean of its divisors is an integer number (64306053).

Almost surely, 2^214353505 is an apocalyptic number.

It is an amenable number.

214353505 is a deficient number, since it is larger than the sum of its proper divisors (42870707).

214353505 is an equidigital number, since it uses as much as digits as its factorization.

214353505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42870706.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 214353505 is about 14640.8164048321. The cubic root of 214353505 is about 598.4715774394.

The spelling of 214353505 in words is "two hundred fourteen million, three hundred fifty-three thousand, five hundred five".