1841281161 has 8 divisors (see below), whose sum is σ = 2466677664. Its totient is φ = 1221702720.

The previous prime is 1841281159. The next prime is 1841281163. The reversal of 1841281161 is 1611821481.

It is an interprime number because it is at equal distance from previous prime (1841281159) and next prime (1841281163).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1841281161 - 2¹ = 1841281159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1841281163) 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 7 ways as a sum of consecutive naturals, for example, 1453776 + ... + 1455041.

It is an arithmetic number, because the mean of its divisors is an integer number (308334708).

Almost surely, 2^1841281161 is an apocalyptic number.

It is an amenable number.

1841281161 is a deficient number, since it is larger than the sum of its proper divisors (625396503).

1841281161 is a wasteful number, since it uses less digits than its factorization.

1841281161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2909031.

The product of its digits is 3072, while the sum is 33.

The square root of 1841281161 is about 42910.1521903617. The cubic root of 1841281161 is about 1225.6694740706.

The spelling of 1841281161 in words is "one billion, eight hundred forty-one million, two hundred eighty-one thousand, one hundred sixty-one".