642301 has 4 divisors (see below), whose sum is σ = 700704. Its totient is φ = 583900.

The previous prime is 642281. The next prime is 642359. The reversal of 642301 is 103246.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 642301 - 2⁹ = 641789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29185 + ... + 29206.

It is an arithmetic number, because the mean of its divisors is an integer number (175176).

2⁶⁴²³⁰¹ is an apocalyptic number.

It is an amenable number.

642301 is a deficient number, since it is larger than the sum of its proper divisors (58403).

642301 is a wasteful number, since it uses less digits than its factorization.

642301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58402.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 642301 is about 801.4368346913. The cubic root of 642301 is about 86.2805422884.

Adding to 642301 its reverse (103246), we get a palindrome (745547).

The spelling of 642301 in words is "six hundred forty-two thousand, three hundred one".