2105545002 has 64 divisors (see below), whose sum is σ = 4865840640. Its totient is φ = 600696000.

The previous prime is 2105544967. The next prime is 2105545007. The reversal of 2105545002 is 2005455012.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2105545007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 199252 + ... + 209552.

It is an arithmetic number, because the mean of its divisors is an integer number (76028760).

Almost surely, 2^2105545002 is an apocalyptic number.

2105545002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2105545002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2432920320).

2105545002 is an abundant number, since it is smaller than the sum of its proper divisors (2760295638).

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

2105545002 is a wasteful number, since it uses less digits than its factorization.

2105545002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10499.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 2105545002 is about 45886.2179962568. The cubic root of 2105545002 is about 1281.7052877394.

The spelling of 2105545002 in words is "two billion, one hundred five million, five hundred forty-five thousand, two".