1199943 has 6 divisors (see below), whose sum is σ = 1733264. Its totient is φ = 799956.

The previous prime is 1199929. The next prime is 1199953. The reversal of 1199943 is 3499911.

It is not a de Polignac number, because 1199943 - 2⁶ = 1199879 is a prime.

It is a Duffinian number.

1199943 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1199898 and 1199907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1199923) 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 5 ways as a sum of consecutive naturals, for example, 66655 + ... + 66672.

2^1199943 is an apocalyptic number.

1199943 is a deficient number, since it is larger than the sum of its proper divisors (533321).

1199943 is a wasteful number, since it uses less digits than its factorization.

1199943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133333 (or 133330 counting only the distinct ones).

The product of its digits is 8748, while the sum is 36.

The square root of 1199943 is about 1095.4190978799. The cubic root of 1199943 is about 106.2641743489.

Subtracting 1199943 from its reverse (3499911), we obtain a cube (2299968 = 132³).

The spelling of 1199943 in words is "one million, one hundred ninety-nine thousand, nine hundred forty-three".