1641082 has 4 divisors (see below), whose sum is σ = 2461626. Its totient is φ = 820540.

The previous prime is 1641077. The next prime is 1641089. The reversal of 1641082 is 2801461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2801461 = 13 ⋅215497.

It can be written as a sum of positive squares in only one way, i.e., 1640961 + 121 = 1281^2 + 11^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1641089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 410269 + ... + 410272.

2^1641082 is an apocalyptic number.

1641082 is a deficient number, since it is larger than the sum of its proper divisors (820544).

1641082 is an equidigital number, since it uses as much as digits as its factorization.

1641082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820543.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 1641082 is about 1281.0472278570. The cubic root of 1641082 is about 117.9532995320.

It can be divided in two parts, 16410 and 82, that multiplied together give a triangular number (1345620 = T₁₆₄₀).

The spelling of 1641082 in words is "one million, six hundred forty-one thousand, eighty-two".