1214421239 has 2 divisors, whose sum is σ = 1214421240. Its totient is φ = 1214421238.

The previous prime is 1214421227. The next prime is 1214421317. The reversal of 1214421239 is 9321244121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1214421239 - 2²⁸ = 945985783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1214421539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607210619 + 607210620.

It is an arithmetic number, because the mean of its divisors is an integer number (607210620).

Almost surely, 2^1214421239 is an apocalyptic number.

1214421239 is a deficient number, since it is larger than the sum of its proper divisors (1).

1214421239 is an equidigital number, since it uses as much as digits as its factorization.

1214421239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 29.

The square root of 1214421239 is about 34848.5471576650. The cubic root of 1214421239 is about 1066.8985330688.

The spelling of 1214421239 in words is "one billion, two hundred fourteen million, four hundred twenty-one thousand, two hundred thirty-nine".