1533223117 has 2 divisors, whose sum is σ = 1533223118. Its totient is φ = 1533223116.

The previous prime is 1533223063. The next prime is 1533223129. The reversal of 1533223117 is 7113223351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1260676036 + 272547081 = 35506^2 + 16509^2 .

It is a cyclic number.

It is not a de Polignac number, because 1533223117 - 2⁷ = 1533222989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1533223177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 766611558 + 766611559.

It is an arithmetic number, because the mean of its divisors is an integer number (766611559).

It is a self-describing number.

Almost surely, 2^1533223117 is an apocalyptic number.

It is an amenable number.

1533223117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1533223117 is an equidigital number, since it uses as much as digits as its factorization.

1533223117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3780, while the sum is 28.

The square root of 1533223117 is about 39156.3930540084. The cubic root of 1533223117 is about 1153.1039315554.

Adding to 1533223117 its reverse (7113223351), we get a palindrome (8646446468).

The spelling of 1533223117 in words is "one billion, five hundred thirty-three million, two hundred twenty-three thousand, one hundred seventeen".