214985090 has 16 divisors (see below), whose sum is σ = 387140472. Its totient is φ = 85956864.

The previous prime is 214985087. The next prime is 214985123. The reversal of 214985090 is 90589412.

It can be written as a sum of positive squares in 4 ways, for example, as 144408289 + 70576801 = 12017^2 + 8401^2 .

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40892 + ... + 45848.

Almost surely, 2^214985090 is an apocalyptic number.

214985090 is a deficient number, since it is larger than the sum of its proper divisors (172155382).

214985090 is a wasteful number, since it uses less digits than its factorization.

214985090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9301.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 214985090 is about 14662.3698630201. The cubic root of 214985090 is about 599.0587928390.

The spelling of 214985090 in words is "two hundred fourteen million, nine hundred eighty-five thousand, ninety".