65229445 has 4 divisors (see below), whose sum is σ = 78275340. Its totient is φ = 52183552.

The previous prime is 65229443. The next prime is 65229457. The reversal of 65229445 is 54492256.

65229445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40934404 + 24295041 = 6398^2 + 4929^2 .

It is a cyclic number.

It is not a de Polignac number, because 65229445 - 2¹ = 65229443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65229443) 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 in 3 ways as a sum of consecutive naturals, for example, 6522940 + ... + 6522949.

It is an arithmetic number, because the mean of its divisors is an integer number (19568835).

Almost surely, 2^65229445 is an apocalyptic number.

It is an amenable number.

65229445 is a deficient number, since it is larger than the sum of its proper divisors (13045895).

65229445 is a wasteful number, since it uses less digits than its factorization.

65229445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13045894.

The product of its digits is 86400, while the sum is 37.

The square root of 65229445 is about 8076.4747879257. The cubic root of 65229445 is about 402.5451153729.

The spelling of 65229445 in words is "sixty-five million, two hundred twenty-nine thousand, four hundred forty-five".