1214143279 has 2 divisors, whose sum is σ = 1214143280. Its totient is φ = 1214143278.

The previous prime is 1214143267. The next prime is 1214143331. The reversal of 1214143279 is 9723414121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1214143279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1214143079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607071639 + 607071640.

It is an arithmetic number, because the mean of its divisors is an integer number (607071640).

Almost surely, 2^1214143279 is an apocalyptic number.

1214143279 is a deficient number, since it is larger than the sum of its proper divisors (1).

1214143279 is an equidigital number, since it uses as much as digits as its factorization.

1214143279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 34.

The square root of 1214143279 is about 34844.5588148279. The cubic root of 1214143279 is about 1066.8171286558.

The spelling of 1214143279 in words is "one billion, two hundred fourteen million, one hundred forty-three thousand, two hundred seventy-nine".