64243245 has 32 divisors (see below), whose sum is σ = 113508864. Its totient is φ = 30766400.

The previous prime is 64243243. The next prime is 64243259. The reversal of 64243245 is 54234246.

64243245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64243245 - 2¹ = 64243243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64243241) 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 31 ways as a sum of consecutive naturals, for example, 11350 + ... + 16040.

It is an arithmetic number, because the mean of its divisors is an integer number (3547152).

Almost surely, 2^64243245 is an apocalyptic number.

It is an amenable number.

64243245 is a deficient number, since it is larger than the sum of its proper divisors (49265619).

64243245 is a wasteful number, since it uses less digits than its factorization.

64243245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4793.

The product of its digits is 23040, while the sum is 30.

The square root of 64243245 is about 8015.1883945420. The cubic root of 64243245 is about 400.5061197536.

It can be divided in two parts, 6424 and 3245, that added together give a palindrome (9669).

The spelling of 64243245 in words is "sixty-four million, two hundred forty-three thousand, two hundred forty-five".