501500189 has 2 divisors, whose sum is σ = 501500190. Its totient is φ = 501500188.

The previous prime is 501500149. The next prime is 501500191. The reversal of 501500189 is 981005105.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 413796964 + 87703225 = 20342^2 + 9365^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-501500189 is a prime.

Together with 501500191, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (501500149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250750094 + 250750095.

It is an arithmetic number, because the mean of its divisors is an integer number (250750095).

Almost surely, 2^501500189 is an apocalyptic number.

It is an amenable number.

501500189 is a deficient number, since it is larger than the sum of its proper divisors (1).

501500189 is an equidigital number, since it uses as much as digits as its factorization.

501500189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 29.

The square root of 501500189 is about 22394.1998964017. The cubic root of 501500189 is about 794.4935339365.

The spelling of 501500189 in words is "five hundred one million, five hundred thousand, one hundred eighty-nine".