4217449139 has 2 divisors, whose sum is σ = 4217449140. Its totient is φ = 4217449138.

The previous prime is 4217449121. The next prime is 4217449163. The reversal of 4217449139 is 9319447124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4217449139 - 2⁸ = 4217448883 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4217449139.

It is not a weakly prime, because it can be changed into another prime (4217449169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2108724569 + 2108724570.

It is an arithmetic number, because the mean of its divisors is an integer number (2108724570).

Almost surely, 2^4217449139 is an apocalyptic number.

4217449139 is a deficient number, since it is larger than the sum of its proper divisors (1).

4217449139 is an equidigital number, since it uses as much as digits as its factorization.

4217449139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 44.

The square root of 4217449139 is about 64941.8904791045. The cubic root of 4217449139 is about 1615.6599192614.

The spelling of 4217449139 in words is "four billion, two hundred seventeen million, four hundred forty-nine thousand, one hundred thirty-nine".