3181618041 has 32 divisors (see below), whose sum is σ = 4881254400. Its totient is φ = 1805712384.

The previous prime is 3181618021. The next prime is 3181618061. The reversal of 3181618041 is 1408161813.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3181618021) and next prime (3181618061).

It is not a de Polignac number, because 3181618041 - 2⁹ = 3181617529 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3181617993 and 3181618011.

It is not an unprimeable number, because it can be changed into a prime (3181618021) 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 31 ways as a sum of consecutive naturals, for example, 2479186 + ... + 2480468.

It is an arithmetic number, because the mean of its divisors is an integer number (152539200).

Almost surely, 2^3181618041 is an apocalyptic number.

It is an amenable number.

3181618041 is a deficient number, since it is larger than the sum of its proper divisors (1699636359).

3181618041 is a wasteful number, since it uses less digits than its factorization.

3181618041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005.

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 3181618041 is about 56405.8333951374. The cubic root of 3181618041 is about 1470.7855244467.

Adding to 3181618041 its reverse (1408161813), we get a palindrome (4589779854).

The spelling of 3181618041 in words is "three billion, one hundred eighty-one million, six hundred eighteen thousand, forty-one".