1641418133 has 2 divisors, whose sum is σ = 1641418134. Its totient is φ = 1641418132.

The previous prime is 1641418127. The next prime is 1641418147. The reversal of 1641418133 is 3318141461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1358438449 + 282979684 = 36857^2 + 16822^2 .

It is an emirp because it is prime and its reverse (3318141461) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1641418133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1641418133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1641418033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 820709066 + 820709067.

It is an arithmetic number, because the mean of its divisors is an integer number (820709067).

Almost surely, 2^1641418133 is an apocalyptic number.

It is an amenable number.

1641418133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1641418133 is an equidigital number, since it uses as much as digits as its factorization.

1641418133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 32.

The square root of 1641418133 is about 40514.4188283628. The cubic root of 1641418133 is about 1179.6135220494.

Adding to 1641418133 its reverse (3318141461), we get a palindrome (4959559594).

The spelling of 1641418133 in words is "one billion, six hundred forty-one million, four hundred eighteen thousand, one hundred thirty-three".