2100551144 has 32 divisors (see below), whose sum is σ = 4179460680. Its totient is φ = 986302464.

The previous prime is 2100551143. The next prime is 2100551149. The reversal of 2100551144 is 4411550012.

It can be written as a sum of positive squares in 4 ways, for example, as 2082827044 + 17724100 = 45638^2 + 4210^2 .

It is not an unprimeable number, because it can be changed into a prime (2100551143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45254 + ... + 79050.

Almost surely, 2^2100551144 is an apocalyptic number.

It is an amenable number.

2100551144 is a deficient number, since it is larger than the sum of its proper divisors (2078909536).

2100551144 is a wasteful number, since it uses less digits than its factorization.

2100551144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34277 (or 34273 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 2100551144 is about 45831.7700290966. The cubic root of 2100551144 is about 1280.6911843189.

The spelling of 2100551144 in words is "two billion, one hundred million, five hundred fifty-one thousand, one hundred forty-four".