1333220129 has 2 divisors, whose sum is σ = 1333220130. Its totient is φ = 1333220128.

The previous prime is 1333220041. The next prime is 1333220171. The reversal of 1333220129 is 9210223331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1064260129 + 268960000 = 32623^2 + 16400^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1333220129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1333220098 and 1333220107.

It is not a weakly prime, because it can be changed into another prime (1333220729) 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, 666610064 + 666610065.

It is an arithmetic number, because the mean of its divisors is an integer number (666610065).

Almost surely, 2^1333220129 is an apocalyptic number.

It is an amenable number.

1333220129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1333220129 is an equidigital number, since it uses as much as digits as its factorization.

1333220129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 1333220129 is about 36513.2870199329. The cubic root of 1333220129 is about 1100.6112660439.

The spelling of 1333220129 in words is "one billion, three hundred thirty-three million, two hundred twenty thousand, one hundred twenty-nine".