7545223129 has 2 divisors, whose sum is σ = 7545223130. Its totient is φ = 7545223128.

The previous prime is 7545223109. The next prime is 7545223141. The reversal of 7545223129 is 9213225457.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6448090000 + 1097133129 = 80300^2 + 33123^2 .

It is a cyclic number.

It is not a de Polignac number, because 7545223129 - 2¹⁵ = 7545190361 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7545223091 and 7545223100.

It is not a weakly prime, because it can be changed into another prime (7545223109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3772611564 + 3772611565.

It is an arithmetic number, because the mean of its divisors is an integer number (3772611565).

Almost surely, 2^7545223129 is an apocalyptic number.

It is an amenable number.

7545223129 is a deficient number, since it is larger than the sum of its proper divisors (1).

7545223129 is an equidigital number, since it uses as much as digits as its factorization.

7545223129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 151200, while the sum is 40.

The square root of 7545223129 is about 86863.2438318993. The cubic root of 7545223129 is about 1961.3602186015.

The spelling of 7545223129 in words is "seven billion, five hundred forty-five million, two hundred twenty-three thousand, one hundred twenty-nine".