214985091 has 8 divisors (see below), whose sum is σ = 296531280. Its totient is φ = 138381152.

The previous prime is 214985087. The next prime is 214985123. The reversal of 214985091 is 190589412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 214985091 - 2² = 214985087 is a prime.

It is not an unprimeable number, because it can be changed into a prime (214985021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1235460 + ... + 1235633.

It is an arithmetic number, because the mean of its divisors is an integer number (37066410).

Almost surely, 2^214985091 is an apocalyptic number.

214985091 is a deficient number, since it is larger than the sum of its proper divisors (81546189).

214985091 is a wasteful number, since it uses less digits than its factorization.

214985091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2471125.

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 214985091 is about 14662.3698971210. The cubic root of 214985091 is about 599.0587937678.

The spelling of 214985091 in words is "two hundred fourteen million, nine hundred eighty-five thousand, ninety-one".