499946189 has 2 divisors, whose sum is σ = 499946190. Its totient is φ = 499946188.

The previous prime is 499946131. The next prime is 499946219. The reversal of 499946189 is 981649994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 277488964 + 222457225 = 16658^2 + 14915^2 .

It is a cyclic number.

It is not a de Polignac number, because 499946189 - 2²⁰ = 498897613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499942189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249973094 + 249973095.

It is an arithmetic number, because the mean of its divisors is an integer number (249973095).

Almost surely, 2^499946189 is an apocalyptic number.

It is an amenable number.

499946189 is a deficient number, since it is larger than the sum of its proper divisors (1).

499946189 is an equidigital number, since it uses as much as digits as its factorization.

499946189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5038848, while the sum is 59.

The square root of 499946189 is about 22359.4764920827. The cubic root of 499946189 is about 793.6720517499.

The spelling of 499946189 in words is "four hundred ninety-nine million, nine hundred forty-six thousand, one hundred eighty-nine".