645603614 has 8 divisors (see below), whose sum is σ = 969296328. Its totient is φ = 322504840.

The previous prime is 645603601. The next prime is 645603617. The reversal of 645603614 is 416306546.

645603614 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (645603617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145757 + ... + 150120.

It is an arithmetic number, because the mean of its divisors is an integer number (121162041).

Almost surely, 2^645603614 is an apocalyptic number.

645603614 is a deficient number, since it is larger than the sum of its proper divisors (323692714).

645603614 is a wasteful number, since it uses less digits than its factorization.

645603614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296970.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 645603614 is about 25408.7310584374. The cubic root of 645603614 is about 864.2817002321.

The spelling of 645603614 in words is "six hundred forty-five million, six hundred three thousand, six hundred fourteen".