2100533345 has 8 divisors (see below), whose sum is σ = 2668913064. Its totient is φ = 1581577984.

The previous prime is 2100533341. The next prime is 2100533419. The reversal of 2100533345 is 5433350012.

It can be written as a sum of positive squares in 4 ways, for example, as 410994529 + 1689538816 = 20273^2 + 41104^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2100533345 - 2² = 2100533341 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2100533341) 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, 12355994 + ... + 12356163.

It is an arithmetic number, because the mean of its divisors is an integer number (333614133).

Almost surely, 2^2100533345 is an apocalyptic number.

It is an amenable number.

2100533345 is a deficient number, since it is larger than the sum of its proper divisors (568379719).

2100533345 is a wasteful number, since it uses less digits than its factorization.

2100533345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24712179.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 2100533345 is about 45831.5758511531. The cubic root of 2100533345 is about 1280.6875670006.

Adding to 2100533345 its reverse (5433350012), we get a palindrome (7533883357).

The spelling of 2100533345 in words is "two billion, one hundred million, five hundred thirty-three thousand, three hundred forty-five".