215104214 has 12 divisors (see below), whose sum is σ = 349385796. Its totient is φ = 99278712.

The previous prime is 215104207. The next prime is 215104217. The reversal of 215104214 is 412401512.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215104217) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 317864 + ... + 318539.

It is an arithmetic number, because the mean of its divisors is an integer number (29115483).

Almost surely, 2^215104214 is an apocalyptic number.

215104214 is a deficient number, since it is larger than the sum of its proper divisors (134281582).

215104214 is a wasteful number, since it uses less digits than its factorization.

215104214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636431 (or 636418 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 215104214 is about 14666.4315359940. The cubic root of 215104214 is about 599.1694192752.

Adding to 215104214 its reverse (412401512), we get a palindrome (627505726).

The spelling of 215104214 in words is "two hundred fifteen million, one hundred four thousand, two hundred fourteen".