1213314245 has 16 divisors (see below), whose sum is σ = 1710519552. Its totient is φ = 814532160.

The previous prime is 1213314241. The next prime is 1213314247. The reversal of 1213314245 is 5424133121.

It is a happy number.

It is not a de Polignac number, because 1213314245 - 2² = 1213314241 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213314241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 847757 + ... + 849186.

It is an arithmetic number, because the mean of its divisors is an integer number (106907472).

Almost surely, 2^1213314245 is an apocalyptic number.

It is an amenable number.

1213314245 is a deficient number, since it is larger than the sum of its proper divisors (497205307).

1213314245 is a wasteful number, since it uses less digits than its factorization.

1213314245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1696972.

The product of its digits is 2880, while the sum is 26.

The square root of 1213314245 is about 34832.6606075390. The cubic root of 1213314245 is about 1066.5742608210.

Adding to 1213314245 its reverse (5424133121), we get a palindrome (6637447366).

The spelling of 1213314245 in words is "one billion, two hundred thirteen million, three hundred fourteen thousand, two hundred forty-five".