2140566100 has 18 divisors (see below), whose sum is σ = 4645028654. Its totient is φ = 856226400.

The previous prime is 2140566037. The next prime is 2140566157. The reversal of 2140566100 is 16650412.

It can be written as a sum of positive squares in 3 ways, for example, as 524043664 + 1616522436 = 22892^2 + 40206^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10702731 + ... + 10702930.

Almost surely, 2^2140566100 is an apocalyptic number.

2140566100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2140566100 is an abundant number, since it is smaller than the sum of its proper divisors (2504462554).

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

2140566100 is a wasteful number, since it uses less digits than its factorization.

2140566100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21405675 (or 21405668 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 2140566100 is about 46266.2522796044. The cubic root of 2140566100 is about 1288.7723633205.

The spelling of 2140566100 in words is "two billion, one hundred forty million, five hundred sixty-six thousand, one hundred".