1912043 has 4 divisors (see below), whose sum is σ = 2185200. Its totient is φ = 1638888.

The previous prime is 1912019. The next prime is 1912061. The reversal of 1912043 is 3402191.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3402191 = 13 ⋅261707.

It is a cyclic number.

It is not a de Polignac number, because 1912043 - 2⁸ = 1911787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1912063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136568 + ... + 136581.

It is an arithmetic number, because the mean of its divisors is an integer number (546300).

2^1912043 is an apocalyptic number.

1912043 is a deficient number, since it is larger than the sum of its proper divisors (273157).

1912043 is an equidigital number, since it uses as much as digits as its factorization.

1912043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273156.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 1912043 is about 1382.7664300235. The cubic root of 1912043 is about 124.1173663314.

The spelling of 1912043 in words is "one million, nine hundred twelve thousand, forty-three".