501220147 has 2 divisors, whose sum is σ = 501220148. Its totient is φ = 501220146.

The previous prime is 501220087. The next prime is 501220193. The reversal of 501220147 is 741022105.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 501220147 - 2¹⁹ = 500695859 is a prime.

It is not a weakly prime, because it can be changed into another prime (501220547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250610073 + 250610074.

It is an arithmetic number, because the mean of its divisors is an integer number (250610074).

Almost surely, 2^501220147 is an apocalyptic number.

501220147 is a deficient number, since it is larger than the sum of its proper divisors (1).

501220147 is an equidigital number, since it uses as much as digits as its factorization.

501220147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 501220147 is about 22387.9464667932. The cubic root of 501220147 is about 794.3456224038.

The spelling of 501220147 in words is "five hundred one million, two hundred twenty thousand, one hundred forty-seven".