2149111800 has 144 divisors (see below), whose sum is σ = 7873636680. Its totient is φ = 520992000.

The previous prime is 2149111777. The next prime is 2149111807. The reversal of 2149111800 is 81119412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2149111807) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 34471 + ... + 74070.

Almost surely, 2^2149111800 is an apocalyptic number.

2149111800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2149111800 is an abundant number, since it is smaller than the sum of its proper divisors (5724524880).

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

2149111800 is a wasteful number, since it uses less digits than its factorization.

2149111800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108574 (or 108562 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

The square root of 2149111800 is about 46358.5137811816. The cubic root of 2149111800 is about 1290.4851249116.

The spelling of 2149111800 in words is "two billion, one hundred forty-nine million, one hundred eleven thousand, eight hundred".