501002147 has 2 divisors, whose sum is σ = 501002148. Its totient is φ = 501002146.

The previous prime is 501002137. The next prime is 501002207. The reversal of 501002147 is 741200105.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-501002147 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (501002107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250501073 + 250501074.

It is an arithmetic number, because the mean of its divisors is an integer number (250501074).

Almost surely, 2^501002147 is an apocalyptic number.

501002147 is a deficient number, since it is larger than the sum of its proper divisors (1).

501002147 is an equidigital number, since it uses as much as digits as its factorization.

501002147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 501002147 is about 22383.0772459910. The cubic root of 501002147 is about 794.2304418399.

The spelling of 501002147 in words is "five hundred one million, two thousand, one hundred forty-seven".