1214345679 has 16 divisors (see below), whose sum is σ = 1642905600. Its totient is φ = 797761440.

The previous prime is 1214345663. The next prime is 1214345687. The reversal of 1214345679 is 9765434121.

It is not a de Polignac number, because 1214345679 - 2⁴ = 1214345663 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1214345679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214345659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46074 + ... + 67464.

It is an arithmetic number, because the mean of its divisors is an integer number (102681600).

Almost surely, 2^1214345679 is an apocalyptic number.

1214345679 is a deficient number, since it is larger than the sum of its proper divisors (428559921).

1214345679 is a wasteful number, since it uses less digits than its factorization.

1214345679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21670.

The product of its digits is 181440, while the sum is 42.

The square root of 1214345679 is about 34847.4630210005. The cubic root of 1214345679 is about 1066.8764055120.

The spelling of 1214345679 in words is "one billion, two hundred fourteen million, three hundred forty-five thousand, six hundred seventy-nine".