501334189 has 2 divisors, whose sum is σ = 501334190. Its totient is φ = 501334188.

The previous prime is 501334187. The next prime is 501334231. The reversal of 501334189 is 981433105.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 488852100 + 12482089 = 22110^2 + 3533^2 .

It is a cyclic number.

It is not a de Polignac number, because 501334189 - 2¹ = 501334187 is a prime.

Together with 501334187, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (501334181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250667094 + 250667095.

It is an arithmetic number, because the mean of its divisors is an integer number (250667095).

Almost surely, 2^501334189 is an apocalyptic number.

It is an amenable number.

501334189 is a deficient number, since it is larger than the sum of its proper divisors (1).

501334189 is an equidigital number, since it uses as much as digits as its factorization.

501334189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 501334189 is about 22390.4932728156. The cubic root of 501334189 is about 794.4058633274.

The spelling of 501334189 in words is "five hundred one million, three hundred thirty-four thousand, one hundred eighty-nine".