1641255 has 64 divisors (see below), whose sum is σ = 3456000. Its totient is φ = 658560.
The previous prime is 1641253. The next prime is 1641281. The reversal of 1641255 is 5521461.
It is not a de Polignac number, because 1641255 - 21 = 1641253 is a prime.
It is a nialpdrome in base 11.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1641253) 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, 56581 + ... + 56609.
It is an arithmetic number, because the mean of its divisors is an integer number (54000).
21641255 is an apocalyptic number.
1641255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
1641255 is an abundant number, since it is smaller than the sum of its proper divisors (1814745).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1641255 is a wasteful number, since it uses less digits than its factorization.
1641255 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 69 (or 55 counting only the distinct ones).
The product of its digits is 1200, while the sum is 24.
The square root of 1641255 is about 1281.1147489589. The cubic root of 1641255 is about 117.9574441967.
The spelling of 1641255 in words is "one million, six hundred forty-one thousand, two hundred fifty-five".
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