1912943 has 2 divisors, whose sum is σ = 1912944. Its totient is φ = 1912942.

The previous prime is 1912921. The next prime is 1912949. The reversal of 1912943 is 3492191.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1912943 - 2⁶ = 1912879 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1912949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 956471 + 956472.

It is an arithmetic number, because the mean of its divisors is an integer number (956472).

2^1912943 is an apocalyptic number.

1912943 is a deficient number, since it is larger than the sum of its proper divisors (1).

1912943 is an equidigital number, since it uses as much as digits as its factorization.

1912943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 29.

The square root of 1912943 is about 1383.0918263080. The cubic root of 1912943 is about 124.1368373210.

The spelling of 1912943 in words is "one million, nine hundred twelve thousand, nine hundred forty-three".