1301349221 has 2 divisors, whose sum is σ = 1301349222. Its totient is φ = 1301349220.

The previous prime is 1301349209. The next prime is 1301349229. The reversal of 1301349221 is 1229431031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1139805121 + 161544100 = 33761^2 + 12710^2 .

It is an emirp because it is prime and its reverse (1229431031) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1301349221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1301349229) 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, 650674610 + 650674611.

It is an arithmetic number, because the mean of its divisors is an integer number (650674611).

Almost surely, 2^1301349221 is an apocalyptic number.

It is an amenable number.

1301349221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1301349221 is an equidigital number, since it uses as much as digits as its factorization.

1301349221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 1301349221 is about 36074.2182313075. The cubic root of 1301349221 is about 1091.7703243592.

The spelling of 1301349221 in words is "one billion, three hundred one million, three hundred forty-nine thousand, two hundred twenty-one".