1641113 has 4 divisors (see below), whose sum is σ = 1663668. Its totient is φ = 1618560.

The previous prime is 1641103. The next prime is 1641131. The reversal of 1641113 is 3111461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3111461 = 631 ⋅4931.

It can be written as a sum of positive squares in 2 ways, for example, as 413449 + 1227664 = 643^2 + 1108^2 .

It is a cyclic number.

It is not a de Polignac number, because 1641113 - 2¹⁴ = 1624729 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1641091 and 1641100.

It is not an unprimeable number, because it can be changed into a prime (1641103) 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, 11168 + ... + 11313.

It is an arithmetic number, because the mean of its divisors is an integer number (415917).

2^1641113 is an apocalyptic number.

It is an amenable number.

1641113 is a deficient number, since it is larger than the sum of its proper divisors (22555).

1641113 is an equidigital number, since it uses as much as digits as its factorization.

1641113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22554.

The product of its digits is 72, while the sum is 17.

The square root of 1641113 is about 1281.0593272757. The cubic root of 1641113 is about 117.9540422390.

Adding to 1641113 its reverse (3111461), we get a palindrome (4752574).

The spelling of 1641113 in words is "one million, six hundred forty-one thousand, one hundred thirteen".