147220013 has 2 divisors, whose sum is σ = 147220014. Its totient is φ = 147220012.

The previous prime is 147219997. The next prime is 147220039. The reversal of 147220013 is 310022741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124055044 + 23164969 = 11138^2 + 4813^2 .

It is a cyclic number.

It is not a de Polignac number, because 147220013 - 2⁴ = 147219997 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147220093) 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, 73610006 + 73610007.

It is an arithmetic number, because the mean of its divisors is an integer number (73610007).

Almost surely, 2^147220013 is an apocalyptic number.

It is an amenable number.

147220013 is a deficient number, since it is larger than the sum of its proper divisors (1).

147220013 is an equidigital number, since it uses as much as digits as its factorization.

147220013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 147220013 is about 12133.4254437896. The cubic root of 147220013 is about 528.0263763319.

Adding to 147220013 its reverse (310022741), we get a palindrome (457242754).

The spelling of 147220013 in words is "one hundred forty-seven million, two hundred twenty thousand, thirteen".