2131619100 has 72 divisors (see below), whose sum is σ = 6641918640. Its totient is φ = 524705280.

The previous prime is 2131619089. The next prime is 2131619107. The reversal of 2131619100 is 19161312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131619107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 269385 + ... + 277184.

It is an arithmetic number, because the mean of its divisors is an integer number (92248870).

Almost surely, 2^2131619100 is an apocalyptic number.

2131619100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131619100 is an abundant number, since it is smaller than the sum of its proper divisors (4510299540).

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

2131619100 is a wasteful number, since it uses less digits than its factorization.

2131619100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546599 (or 546592 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 2131619100 is about 46169.4606856091. The cubic root of 2131619100 is about 1286.9742799754.

The spelling of 2131619100 in words is "two billion, one hundred thirty-one million, six hundred nineteen thousand, one hundred".