645051135 has 8 divisors (see below), whose sum is σ = 1032081840. Its totient is φ = 344027264.

The previous prime is 645051133. The next prime is 645051151. The reversal of 645051135 is 531150546.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 645051135 - 2¹ = 645051133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (645051133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21501690 + ... + 21501719.

It is an arithmetic number, because the mean of its divisors is an integer number (129010230).

Almost surely, 2^645051135 is an apocalyptic number.

645051135 is a deficient number, since it is larger than the sum of its proper divisors (387030705).

645051135 is a wasteful number, since it uses less digits than its factorization.

645051135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43003417.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 645051135 is about 25397.8568977778. The cubic root of 645051135 is about 864.0350918639.

It can be divided in two parts, 6450511 and 35, that added together give a palindrome (6450546).

The spelling of 645051135 in words is "six hundred forty-five million, fifty-one thousand, one hundred thirty-five".