1214215306 has 16 divisors (see below), whose sum is σ = 1845792000. Its totient is φ = 598963248.

The previous prime is 1214215291. The next prime is 1214215307. The reversal of 1214215306 is 6035124121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1214215307) 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, 305971 + ... + 309913.

It is an arithmetic number, because the mean of its divisors is an integer number (115362000).

Almost surely, 2^1214215306 is an apocalyptic number.

1214215306 is a deficient number, since it is larger than the sum of its proper divisors (631576694).

1214215306 is a wasteful number, since it uses less digits than its factorization.

1214215306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5973.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1214215306 is about 34845.5923468091. The cubic root of 1214215306 is about 1066.8382239469.

Adding to 1214215306 its reverse (6035124121), we get a palindrome (7249339427).

The spelling of 1214215306 in words is "one billion, two hundred fourteen million, two hundred fifteen thousand, three hundred six".