153945229 has 2 divisors, whose sum is σ = 153945230. Its totient is φ = 153945228.

The previous prime is 153945227. The next prime is 153945241. The reversal of 153945229 is 922549351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135256900 + 18688329 = 11630^2 + 4323^2 .

It is a cyclic number.

It is not a de Polignac number, because 153945229 - 2¹ = 153945227 is a prime.

Together with 153945227, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 153945191 and 153945200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (153945221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76972614 + 76972615.

It is an arithmetic number, because the mean of its divisors is an integer number (76972615).

Almost surely, 2^153945229 is an apocalyptic number.

It is an amenable number.

153945229 is a deficient number, since it is larger than the sum of its proper divisors (1).

153945229 is an equidigital number, since it uses as much as digits as its factorization.

153945229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97200, while the sum is 40.

The square root of 153945229 is about 12407.4666632637. The cubic root of 153945229 is about 535.9472884323.

The spelling of 153945229 in words is "one hundred fifty-three million, nine hundred forty-five thousand, two hundred twenty-nine".