645113135 has 8 divisors (see below), whose sum is σ = 779787216. Its totient is φ = 512322880.

The previous prime is 645113123. The next prime is 645113197. The reversal of 645113135 is 531311546.

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

It is not a de Polignac number, because 645113135 - 2⁶ = 645113071 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 645113098 and 645113107.

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 7 ways as a sum of consecutive naturals, for example, 470201 + ... + 471570.

It is an arithmetic number, because the mean of its divisors is an integer number (97473402).

Almost surely, 2^645113135 is an apocalyptic number.

645113135 is a deficient number, since it is larger than the sum of its proper divisors (134674081).

645113135 is a wasteful number, since it uses less digits than its factorization.

645113135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941913.

The product of its digits is 5400, while the sum is 29.

The square root of 645113135 is about 25399.0774438758. The cubic root of 645113135 is about 864.0627736277.

The spelling of 645113135 in words is "six hundred forty-five million, one hundred thirteen thousand, one hundred thirty-five".