1641441231 has 6 divisors (see below), whose sum is σ = 2370970680. Its totient is φ = 1094294148.

The previous prime is 1641441187. The next prime is 1641441259. The reversal of 1641441231 is 1321441461.

1641441231 is a `hidden beast` number, since 1 + 641 + 4 + 4 + 12 + 3 + 1 = 666.

It is not a de Polignac number, because 1641441231 - 2⁶ = 1641441167 is a prime.

It is a super-2 number, since 2×1641441231² = 5388658629653590722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1641441195 and 1641441204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1641441031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 91191171 + ... + 91191188.

It is an arithmetic number, because the mean of its divisors is an integer number (395161780).

Almost surely, 2^1641441231 is an apocalyptic number.

1641441231 is a deficient number, since it is larger than the sum of its proper divisors (729529449).

1641441231 is a wasteful number, since it uses less digits than its factorization.

1641441231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182382365 (or 182382362 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 1641441231 is about 40514.7038863670. The cubic root of 1641441231 is about 1179.6190551887.

Adding to 1641441231 its reverse (1321441461), we get a palindrome (2962882692).

The spelling of 1641441231 in words is "one billion, six hundred forty-one million, four hundred forty-one thousand, two hundred thirty-one".