653391045 has 24 divisors (see below), whose sum is σ = 1140703200. Its totient is φ = 345964896.

The previous prime is 653391031. The next prime is 653391091. The reversal of 653391045 is 540193356.

It is not a de Polignac number, because 653391045 - 2⁹ = 653390533 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45975 + ... + 58484.

It is an arithmetic number, because the mean of its divisors is an integer number (47529300).

Almost surely, 2^653391045 is an apocalyptic number.

It is an amenable number.

653391045 is a deficient number, since it is larger than the sum of its proper divisors (487312155).

653391045 is a wasteful number, since it uses less digits than its factorization.

653391045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104609 (or 104606 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The square root of 653391045 is about 25561.5149198947. The cubic root of 653391045 is about 867.7428808860.

The spelling of 653391045 in words is "six hundred fifty-three million, three hundred ninety-one thousand, forty-five".