645030601 has 8 divisors (see below), whose sum is σ = 680339520. Its totient is φ = 609857712.

The previous prime is 645030571. The next prime is 645030611. The reversal of 645030601 is 106030546.

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 645030601 - 2⁵ = 645030569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (645030611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24190 + ... + 43303.

It is an arithmetic number, because the mean of its divisors is an integer number (85042440).

Almost surely, 2^645030601 is an apocalyptic number.

It is an amenable number.

645030601 is a deficient number, since it is larger than the sum of its proper divisors (35308919).

645030601 is a wasteful number, since it uses less digits than its factorization.

645030601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68015.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 645030601 is about 25397.4526478543. The cubic root of 645030601 is about 864.0259234513.

The spelling of 645030601 in words is "six hundred forty-five million, thirty thousand, six hundred one".