641270319 has 8 divisors (see below), whose sum is σ = 855186480. Its totient is φ = 427433856.

The previous prime is 641270269. The next prime is 641270321. The reversal of 641270319 is 913072146.

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

It is not a de Polignac number, because 641270319 - 2⁷ = 641270191 is a prime.

It is a super-2 number, since 2×641270319² = 822455244060723522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 641270319.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641270419) 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 7 ways as a sum of consecutive naturals, for example, 2439 + ... + 35895.

It is an arithmetic number, because the mean of its divisors is an integer number (106898310).

Almost surely, 2^641270319 is an apocalyptic number.

641270319 is a deficient number, since it is larger than the sum of its proper divisors (213916161).

641270319 is a wasteful number, since it uses less digits than its factorization.

641270319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39849.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 641270319 is about 25323.3157189180. The cubic root of 641270319 is about 862.3436698812.

The spelling of 641270319 in words is "six hundred forty-one million, two hundred seventy thousand, three hundred nineteen".