1214438647 has 2 divisors, whose sum is σ = 1214438648. Its totient is φ = 1214438646.

The previous prime is 1214438623. The next prime is 1214438681. The reversal of 1214438647 is 7468344121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1214438647 - 2¹⁵ = 1214405879 is a prime.

It is a super-2 number, since 2×1214438647² = 2949722454654381218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1214438347) 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, 607219323 + 607219324.

It is an arithmetic number, because the mean of its divisors is an integer number (607219324).

Almost surely, 2^1214438647 is an apocalyptic number.

1214438647 is a deficient number, since it is larger than the sum of its proper divisors (1).

1214438647 is an equidigital number, since it uses as much as digits as its factorization.

1214438647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129024, while the sum is 40.

The square root of 1214438647 is about 34848.7969232799. The cubic root of 1214438647 is about 1066.9036308280.

The spelling of 1214438647 in words is "one billion, two hundred fourteen million, four hundred thirty-eight thousand, six hundred forty-seven".