2185514000 has 40 divisors (see below), whose sum is σ = 5284577688. Its totient is φ = 874204800.

The previous prime is 2185513987. The next prime is 2185514041. The reversal of 2185514000 is 4155812.

It can be written as a sum of positive squares in 4 ways, for example, as 131974144 + 2053539856 = 11488^2 + 45316^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 544379 + ... + 548378.

Almost surely, 2^2185514000 is an apocalyptic number.

2185514000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2185514000 is an abundant number, since it is smaller than the sum of its proper divisors (3099063688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2185514000 is a wasteful number, since it uses less digits than its factorization.

2185514000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092780 (or 1092764 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 2185514000 is about 46749.4812805447. The cubic root of 2185514000 is about 1297.7305572473.

Adding to 2185514000 its reverse (4155812), we get a palindrome (2189669812).

The spelling of 2185514000 in words is "two billion, one hundred eighty-five million, five hundred fourteen thousand".