1301553101 has 2 divisors, whose sum is σ = 1301553102. Its totient is φ = 1301553100.

The previous prime is 1301553053. The next prime is 1301553119. The reversal of 1301553101 is 1013551031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 695113225 + 606439876 = 26365^2 + 24626^2 .

It is an emirp because it is prime and its reverse (1013551031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1301553101 - 2⁶ = 1301553037 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1301553151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650776550 + 650776551.

It is an arithmetic number, because the mean of its divisors is an integer number (650776551).

Almost surely, 2^1301553101 is an apocalyptic number.

It is an amenable number.

1301553101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1301553101 is an equidigital number, since it uses as much as digits as its factorization.

1301553101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 225, while the sum is 20.

The square root of 1301553101 is about 36077.0439614999. The cubic root of 1301553101 is about 1091.8273366013.

The spelling of 1301553101 in words is "one billion, three hundred one million, five hundred fifty-three thousand, one hundred one".