214464505 has 4 divisors (see below), whose sum is σ = 257357412. Its totient is φ = 171571600.

The previous prime is 214464493. The next prime is 214464527. The reversal of 214464505 is 505464412.

It is a happy number.

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 126405049 + 88059456 = 11243^2 + 9384^2 .

It is not a de Polignac number, because 214464505 - 2⁷ = 214464377 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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21446446 + ... + 21446455.

It is an arithmetic number, because the mean of its divisors is an integer number (64339353).

Almost surely, 2^214464505 is an apocalyptic number.

It is an amenable number.

214464505 is a deficient number, since it is larger than the sum of its proper divisors (42892907).

214464505 is an equidigital number, since it uses as much as digits as its factorization.

214464505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42892906.

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 214464505 is about 14644.6066864221. The cubic root of 214464505 is about 598.5748630248.

The spelling of 214464505 in words is "two hundred fourteen million, four hundred sixty-four thousand, five hundred five".