641371445 has 64 divisors (see below), whose sum is σ = 966518784. Its totient is φ = 401829120.

The previous prime is 641371441. The next prime is 641371457. The reversal of 641371445 is 544173146.

641371445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 641371445 - 2² = 641371441 is a prime.

It is a super-2 number, since 2×641371445² = 822714660922776050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641371441) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 706682 + ... + 707588.

It is an arithmetic number, because the mean of its divisors is an integer number (15101856).

Almost surely, 2^641371445 is an apocalyptic number.

641371445 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

641371445 is a deficient number, since it is larger than the sum of its proper divisors (325147339).

641371445 is a wasteful number, since it uses less digits than its factorization.

641371445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002.

The product of its digits is 40320, while the sum is 35.

The square root of 641371445 is about 25325.3123376593. The cubic root of 641371445 is about 862.3889969868.

The spelling of 641371445 in words is "six hundred forty-one million, three hundred seventy-one thousand, four hundred forty-five".