1641413 has 4 divisors (see below), whose sum is σ = 1645248. Its totient is φ = 1637580.

The previous prime is 1641407. The next prime is 1641457. The reversal of 1641413 is 3141461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1641413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1641403) 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, 1181 + ... + 2162.

It is an arithmetic number, because the mean of its divisors is an integer number (411312).

2^1641413 is an apocalyptic number.

It is an amenable number.

1641413 is a deficient number, since it is larger than the sum of its proper divisors (3835).

1641413 is an equidigital number, since it uses as much as digits as its factorization.

1641413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3834.

The product of its digits is 288, while the sum is 20.

The square root of 1641413 is about 1281.1764125209. The cubic root of 1641413 is about 117.9612292429.

Adding to 1641413 its reverse (3141461), we get a palindrome (4782874).

The spelling of 1641413 in words is "one million, six hundred forty-one thousand, four hundred thirteen".