2106519193 has 4 divisors (see below), whose sum is σ = 2198107008. Its totient is φ = 2014931380.

The previous prime is 2106519143. The next prime is 2106519203. The reversal of 2106519193 is 3919156012.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2106519193 - 2⁹ = 2106518681 is a prime.

It is a super-2 number, since 2×2106519193² = 8874846220954742498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2106519143) 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, 45793873 + ... + 45793918.

It is an arithmetic number, because the mean of its divisors is an integer number (549526752).

Almost surely, 2^2106519193 is an apocalyptic number.

2106519193 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2106519193 is a deficient number, since it is larger than the sum of its proper divisors (91587815).

2106519193 is an equidigital number, since it uses as much as digits as its factorization.

2106519193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91587814.

The product of its (nonzero) digits is 14580, while the sum is 37.

The square root of 2106519193 is about 45896.8320584330. The cubic root of 2106519193 is about 1281.9029298754.

The spelling of 2106519193 in words is "two billion, one hundred six million, five hundred nineteen thousand, one hundred ninety-three".