1641063 has 4 divisors (see below), whose sum is σ = 2188088. Its totient is φ = 1094040.

The previous prime is 1641053. The next prime is 1641077. The reversal of 1641063 is 3601461.

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

It is not a de Polignac number, because 1641063 - 2¹³ = 1632871 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1641043) 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, 273508 + ... + 273513.

It is an arithmetic number, because the mean of its divisors is an integer number (547022).

2^1641063 is an apocalyptic number.

1641063 is a deficient number, since it is larger than the sum of its proper divisors (547025).

1641063 is an equidigital number, since it uses as much as digits as its factorization.

1641063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547024.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1641063 is about 1281.0398120277. The cubic root of 1641063 is about 117.9528443199.

The spelling of 1641063 in words is "one million, six hundred forty-one thousand, sixty-three".