2185130946 has 32 divisors (see below), whose sum is σ = 4432046400. Its totient is φ = 718147584.

The previous prime is 2185130933. The next prime is 2185130963. The reversal of 2185130946 is 6490315812.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122505 + ... + 139203.

It is an arithmetic number, because the mean of its divisors is an integer number (138501450).

Almost surely, 2^2185130946 is an apocalyptic number.

2185130946 is an abundant number, since it is smaller than the sum of its proper divisors (2246915454).

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

2185130946 is a wasteful number, since it uses less digits than its factorization.

2185130946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17010.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 2185130946 is about 46745.3842213325. The cubic root of 2185130946 is about 1297.6547352781.

The spelling of 2185130946 in words is "two billion, one hundred eighty-five million, one hundred thirty thousand, nine hundred forty-six".