1721014223 has 2 divisors, whose sum is σ = 1721014224. Its totient is φ = 1721014222.

The previous prime is 1721014187. The next prime is 1721014297. The reversal of 1721014223 is 3224101271.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1721014223 - 2¹² = 1721010127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1721014423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 860507111 + 860507112.

It is an arithmetic number, because the mean of its divisors is an integer number (860507112).

Almost surely, 2^1721014223 is an apocalyptic number.

1721014223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1721014223 is an equidigital number, since it uses as much as digits as its factorization.

1721014223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 1721014223 is about 41485.1084486952. The cubic root of 1721014223 is about 1198.3807379656.

Adding to 1721014223 its reverse (3224101271), we get a palindrome (4945115494).

The spelling of 1721014223 in words is "one billion, seven hundred twenty-one million, fourteen thousand, two hundred twenty-three".