641404103 has 4 divisors (see below), whose sum is σ = 642102960. Its totient is φ = 640705248.

The previous prime is 641404079. The next prime is 641404111. The reversal of 641404103 is 301404146.

641404103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 641404103 - 2²² = 637209799 is a prime.

It is a super-2 number, since 2×641404103² = 822798446690469218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641404193) 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, 348050 + ... + 349887.

It is an arithmetic number, because the mean of its divisors is an integer number (160525740).

Almost surely, 2^641404103 is an apocalyptic number.

641404103 is a deficient number, since it is larger than the sum of its proper divisors (698857).

641404103 is an equidigital number, since it uses as much as digits as its factorization.

641404103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698856.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 641404103 is about 25325.9570993872. The cubic root of 641404103 is about 862.4036340701.

Adding to 641404103 its reverse (301404146), we get a palindrome (942808249).

The spelling of 641404103 in words is "six hundred forty-one million, four hundred four thousand, one hundred three".