1439916223 has 2 divisors, whose sum is σ = 1439916224. Its totient is φ = 1439916222.

The previous prime is 1439916211. The next prime is 1439916271. The reversal of 1439916223 is 3226199341.

It is a weak prime.

It is an emirp because it is prime and its reverse (3226199341) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1439916223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1439916293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 719958111 + 719958112.

It is an arithmetic number, because the mean of its divisors is an integer number (719958112).

Almost surely, 2^1439916223 is an apocalyptic number.

1439916223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1439916223 is an equidigital number, since it uses as much as digits as its factorization.

1439916223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 40.

The square root of 1439916223 is about 37946.2280470668. The cubic root of 1439916223 is about 1129.2213350171.

The spelling of 1439916223 in words is "one billion, four hundred thirty-nine million, nine hundred sixteen thousand, two hundred twenty-three".