214305505 has 16 divisors (see below), whose sum is σ = 270406800. Its totient is φ = 162812160.

The previous prime is 214305499. The next prime is 214305529. The reversal of 214305505 is 505503412.

It can be written as a sum of positive squares in 8 ways, for example, as 65270241 + 149035264 = 8079^2 + 12208^2 .

It is not a de Polignac number, because 214305505 - 2²⁵ = 180751073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 214305505.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3270 + ... + 20959.

It is an arithmetic number, because the mean of its divisors is an integer number (16900425).

Almost surely, 2^214305505 is an apocalyptic number.

It is an amenable number.

214305505 is a deficient number, since it is larger than the sum of its proper divisors (56101295).

214305505 is a wasteful number, since it uses less digits than its factorization.

214305505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24324.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 214305505 is about 14639.1770602039. The cubic root of 214305505 is about 598.4269023590.

Adding to 214305505 its reverse (505503412), we get a palindrome (719808917).

The spelling of 214305505 in words is "two hundred fourteen million, three hundred five thousand, five hundred five".