2156124300 has 144 divisors (see below), whose sum is σ = 6917723904. Its totient is φ = 514080000.

The previous prime is 2156124293. The next prime is 2156124329. The reversal of 2156124300 is 34216512.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 195945 + ... + 206655.

Almost surely, 2^2156124300 is an apocalyptic number.

2156124300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2156124300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3458861952).

2156124300 is an abundant number, since it is smaller than the sum of its proper divisors (4761599604).

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

2156124300 is a wasteful number, since it uses less digits than its factorization.

2156124300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10800 (or 10793 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2156124300 is about 46434.0855406887. The cubic root of 2156124300 is about 1291.8872083128.

It can be divided in two parts, 215612 and 4300, that added together give a palindrome (219912).

The spelling of 2156124300 in words is "two billion, one hundred fifty-six million, one hundred twenty-four thousand, three hundred".