2106519194 has 8 divisors (see below), whose sum is σ = 3402838740. Its totient is φ = 972239616.

The previous prime is 2106519143. The next prime is 2106519203. The reversal of 2106519194 is 4919156012.

It can be written as a sum of positive squares in 2 ways, for example, as 1866672025 + 239847169 = 43205^2 + 15487^2 .

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

It is a super-2 number, since 2×2106519194² = 8874846229380819272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40509959 + ... + 40510010.

Almost surely, 2^2106519194 is an apocalyptic number.

2106519194 is a deficient number, since it is larger than the sum of its proper divisors (1296319546).

2106519194 is a wasteful number, since it uses less digits than its factorization.

2106519194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81019984.

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 2106519194 is about 45896.8320693270. The cubic root of 2106519194 is about 1281.9029300782.

The spelling of 2106519194 in words is "two billion, one hundred six million, five hundred nineteen thousand, one hundred ninety-four".