2185514001 has 32 divisors (see below), whose sum is σ = 3614307840. Its totient is φ = 1293742800.

The previous prime is 2185513987. The next prime is 2185514041. The reversal of 2185514001 is 1004155812.

It is not a de Polignac number, because 2185514001 - 2⁷ = 2185513873 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (2185514041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72795 + ... + 98336.

It is an arithmetic number, because the mean of its divisors is an integer number (112947120).

Almost surely, 2^2185514001 is an apocalyptic number.

It is an amenable number.

2185514001 is a deficient number, since it is larger than the sum of its proper divisors (1428793839).

2185514001 is a wasteful number, since it uses less digits than its factorization.

2185514001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171194 (or 171188 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

The square root of 2185514001 is about 46749.4812912400. The cubic root of 2185514001 is about 1297.7305574452.

Adding to 2185514001 its reverse (1004155812), we get a palindrome (3189669813).

The spelling of 2185514001 in words is "two billion, one hundred eighty-five million, five hundred fourteen thousand, one".