2152105099 has 4 divisors (see below), whose sum is σ = 2154611320. Its totient is φ = 2149598880.

The previous prime is 2152105061. The next prime is 2152105103. The reversal of 2152105099 is 9905012512.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2152105099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2152105019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1251822 + ... + 1253539.

It is an arithmetic number, because the mean of its divisors is an integer number (538652830).

Almost surely, 2^2152105099 is an apocalyptic number.

2152105099 is a deficient number, since it is larger than the sum of its proper divisors (2506221).

2152105099 is an equidigital number, since it uses as much as digits as its factorization.

2152105099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2506220.

The product of its (nonzero) digits is 8100, while the sum is 34.

The square root of 2152105099 is about 46390.7867900513. The cubic root of 2152105099 is about 1291.0839794148.

The spelling of 2152105099 in words is "two billion, one hundred fifty-two million, one hundred five thousand, ninety-nine".