1523320133 has 2 divisors, whose sum is σ = 1523320134. Its totient is φ = 1523320132.

The previous prime is 1523320069. The next prime is 1523320151. The reversal of 1523320133 is 3310233251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 799871524 + 723448609 = 28282^2 + 26897^2 .

It is a cyclic number.

It is not a de Polignac number, because 1523320133 - 2⁶ = 1523320069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1523320099 and 1523320108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1523320433) 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, 761660066 + 761660067.

It is an arithmetic number, because the mean of its divisors is an integer number (761660067).

Almost surely, 2^1523320133 is an apocalyptic number.

It is an amenable number.

1523320133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1523320133 is an equidigital number, since it uses as much as digits as its factorization.

1523320133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 1523320133 is about 39029.7339601489. The cubic root of 1523320133 is about 1150.6159606327.

Adding to 1523320133 its reverse (3310233251), we get a palindrome (4833553384).

The spelling of 1523320133 in words is "one billion, five hundred twenty-three million, three hundred twenty thousand, one hundred thirty-three".