2145303533 has 2 divisors, whose sum is σ = 2145303534. Its totient is φ = 2145303532.

The previous prime is 2145303521. The next prime is 2145303577. The reversal of 2145303533 is 3353035412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1640088004 + 505215529 = 40498^2 + 22477^2 .

It is a cyclic number.

It is not a de Polignac number, because 2145303533 - 2¹² = 2145299437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2145303496 and 2145303505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2145303733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072651766 + 1072651767.

It is an arithmetic number, because the mean of its divisors is an integer number (1072651767).

Almost surely, 2^2145303533 is an apocalyptic number.

It is an amenable number.

2145303533 is a deficient number, since it is larger than the sum of its proper divisors (1).

2145303533 is an equidigital number, since it uses as much as digits as its factorization.

2145303533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 29.

The square root of 2145303533 is about 46317.4214847934. The cubic root of 2145303533 is about 1289.7224194929.

Adding to 2145303533 its reverse (3353035412), we get a palindrome (5498338945).

The spelling of 2145303533 in words is "two billion, one hundred forty-five million, three hundred three thousand, five hundred thirty-three".