1214315305 has 12 divisors (see below), whose sum is σ = 1695085380. Its totient is φ = 832673184.

The previous prime is 1214315293. The next prime is 1214315309. The reversal of 1214315305 is 5035134121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 570779881 + 643535424 = 23891^2 + 25368^2 .

It is not a de Polignac number, because 1214315305 - 2⁹ = 1214314793 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1214315305.

It is not an unprimeable number, because it can be changed into a prime (1214315309) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2477950 + ... + 2478439.

It is an arithmetic number, because the mean of its divisors is an integer number (141257115).

Almost surely, 2^1214315305 is an apocalyptic number.

It is an amenable number.

1214315305 is a deficient number, since it is larger than the sum of its proper divisors (480770075).

1214315305 is an equidigital number, since it uses as much as digits as its factorization.

1214315305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4956408 (or 4956401 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1214315305 is about 34847.0272046268. The cubic root of 1214315305 is about 1066.8675103034.

Adding to 1214315305 its reverse (5035134121), we get a palindrome (6249449426).

It can be divided in two parts, 121431 and 5305, that added together give a square (126736 = 356²).

The spelling of 1214315305 in words is "one billion, two hundred fourteen million, three hundred fifteen thousand, three hundred five".