190943 has 4 divisors (see below), whose sum is σ = 193440. Its totient is φ = 188448.

The previous prime is 190921. The next prime is 190979. The reversal of 190943 is 349091.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 349091 = 31 ⋅11261.

It is a cyclic number.

It is not a de Polignac number, because 190943 - 2¹⁶ = 125407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190913) 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, 1130 + ... + 1287.

It is an arithmetic number, because the mean of its divisors is an integer number (48360).

2¹⁹⁰⁹⁴³ is an apocalyptic number.

190943 is a deficient number, since it is larger than the sum of its proper divisors (2497).

190943 is an equidigital number, since it uses as much as digits as its factorization.

190943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2496.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 190943 is about 436.9702507036. The cubic root of 190943 is about 57.5839228214.

Adding to 190943 its sum of digits (26), we get a square (190969 = 437²).

The spelling of 190943 in words is "one hundred ninety thousand, nine hundred forty-three".