500191213 has 2 divisors, whose sum is σ = 500191214. Its totient is φ = 500191212.

The previous prime is 500191193. The next prime is 500191253. The reversal of 500191213 is 312191005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 343991209 + 156200004 = 18547^2 + 12498^2 .

It is a cyclic number.

It is not a de Polignac number, because 500191213 - 2⁹ = 500190701 is a prime.

It is a super-2 number, since 2×500191213² = 500382499124822738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (500191253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250095606 + 250095607.

It is an arithmetic number, because the mean of its divisors is an integer number (250095607).

Almost surely, 2^500191213 is an apocalyptic number.

It is an amenable number.

500191213 is a deficient number, since it is larger than the sum of its proper divisors (1).

500191213 is an equidigital number, since it uses as much as digits as its factorization.

500191213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 270, while the sum is 22.

The square root of 500191213 is about 22364.9550189577. The cubic root of 500191213 is about 793.8016903284.

The spelling of 500191213 in words is "five hundred million, one hundred ninety-one thousand, two hundred thirteen".