1912834193 has 4 divisors (see below), whose sum is σ = 1915265520. Its totient is φ = 1910402868.

The previous prime is 1912834181. The next prime is 1912834207. The reversal of 1912834193 is 3914382191.

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 1912834193 - 2¹⁸ = 1912572049 is a prime.

It is a super-2 number, since 2×1912834193² = 7317869299819922498, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1912834193.

It is not an unprimeable number, because it can be changed into a prime (1912834163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1214483 + ... + 1216056.

It is an arithmetic number, because the mean of its divisors is an integer number (478816380).

Almost surely, 2^1912834193 is an apocalyptic number.

It is an amenable number.

1912834193 is a deficient number, since it is larger than the sum of its proper divisors (2431327).

1912834193 is an equidigital number, since it uses as much as digits as its factorization.

1912834193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2431326.

The product of its digits is 46656, while the sum is 41.

The square root of 1912834193 is about 43735.9599528809. The cubic root of 1912834193 is about 1241.3448366782.

The spelling of 1912834193 in words is "one billion, nine hundred twelve million, eight hundred thirty-four thousand, one hundred ninety-three".