2185312041 has 40 divisors (see below), whose sum is σ = 3716121024. Its totient is φ = 1266835680.

The previous prime is 2185312027. The next prime is 2185312049. The reversal of 2185312041 is 1402135812.

It is not a de Polignac number, because 2185312041 - 2¹⁴ = 2185295657 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 2185311996 and 2185312014.

It is not an unprimeable number, because it can be changed into a prime (2185312049) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 32826 + ... + 73811.

Almost surely, 2^2185312041 is an apocalyptic number.

It is an amenable number.

2185312041 is a deficient number, since it is larger than the sum of its proper divisors (1530808983).

2185312041 is a wasteful number, since it uses less digits than its factorization.

2185312041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106683 (or 106674 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 2185312041 is about 46747.3212173703. The cubic root of 2185312041 is about 1297.6905824498.

Adding to 2185312041 its reverse (1402135812), we get a palindrome (3587447853).

The spelling of 2185312041 in words is "two billion, one hundred eighty-five million, three hundred twelve thousand, forty-one".