645141422 has 16 divisors (see below), whose sum is σ = 972646080. Its totient is φ = 320931072.

The previous prime is 645141407. The next prime is 645141451. The reversal of 645141422 is 224141546.

645141422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 400154 + ... + 401762.

It is an arithmetic number, because the mean of its divisors is an integer number (60790380).

Almost surely, 2^645141422 is an apocalyptic number.

645141422 is a deficient number, since it is larger than the sum of its proper divisors (327504658).

645141422 is a wasteful number, since it uses less digits than its factorization.

645141422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2507.

The product of its digits is 7680, while the sum is 29.

The square root of 645141422 is about 25399.6342887058. The cubic root of 645141422 is about 864.0754026200.

Adding to 645141422 its reverse (224141546), we get a palindrome (869282968).

The spelling of 645141422 in words is "six hundred forty-five million, one hundred forty-one thousand, four hundred twenty-two".