214721519 has 2 divisors, whose sum is σ = 214721520. Its totient is φ = 214721518.

The previous prime is 214721513. The next prime is 214721579. The reversal of 214721519 is 915127412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 214721519 - 2⁴ = 214721503 is a prime.

It is a super-2 number, since 2×214721519² = 92210661443334722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214721513) 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, 107360759 + 107360760.

It is an arithmetic number, because the mean of its divisors is an integer number (107360760).

Almost surely, 2^214721519 is an apocalyptic number.

214721519 is a deficient number, since it is larger than the sum of its proper divisors (1).

214721519 is an equidigital number, since it uses as much as digits as its factorization.

214721519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 32.

The square root of 214721519 is about 14653.3790983513. The cubic root of 214721519 is about 598.8138780326.

The spelling of 214721519 in words is "two hundred fourteen million, seven hundred twenty-one thousand, five hundred nineteen".