2145186200 has 24 divisors (see below), whose sum is σ = 4987558380. Its totient is φ = 858074400.

The previous prime is 2145186161. The next prime is 2145186209. The reversal of 2145186200 is 26815412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145186209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5362766 + ... + 5363165.

Almost surely, 2^2145186200 is an apocalyptic number.

2145186200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2145186200 is an abundant number, since it is smaller than the sum of its proper divisors (2842372180).

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

2145186200 is a wasteful number, since it uses less digits than its factorization.

2145186200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10725947 (or 10725938 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 2145186200 is about 46316.1548490373. The cubic root of 2145186200 is about 1289.6989061520.

The spelling of 2145186200 in words is "two billion, one hundred forty-five million, one hundred eighty-six thousand, two hundred".