641420203 has 8 divisors (see below), whose sum is σ = 646220000. Its totient is φ = 636629760.

The previous prime is 641420191. The next prime is 641420237. The reversal of 641420203 is 302024146.

It is a happy number.

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 641420203 - 2²⁵ = 607865771 is a prime.

It is a super-2 number, since 2×641420203² = 822839753633122418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (641420303) by changing a digit.

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, 194458 + ... + 197728.

It is an arithmetic number, because the mean of its divisors is an integer number (80777500).

Almost surely, 2^641420203 is an apocalyptic number.

641420203 is a deficient number, since it is larger than the sum of its proper divisors (4799797).

641420203 is a wasteful number, since it uses less digits than its factorization.

641420203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4677.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 641420203 is about 25326.2749530996. The cubic root of 641420203 is about 862.4108497927.

Adding to 641420203 its reverse (302024146), we get a palindrome (943444349).

The spelling of 641420203 in words is "six hundred forty-one million, four hundred twenty thousand, two hundred three".