190002943 has 4 divisors (see below), whose sum is σ = 204618568. Its totient is φ = 175387320.

The previous prime is 190002941. The next prime is 190002949. The reversal of 190002943 is 349200091.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 190002943 - 2¹ = 190002941 is a prime.

It is a super-2 number, since 2×190002943² = 72202236697322498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190002941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7307793 + ... + 7307818.

It is an arithmetic number, because the mean of its divisors is an integer number (51154642).

Almost surely, 2^190002943 is an apocalyptic number.

190002943 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

190002943 is a deficient number, since it is larger than the sum of its proper divisors (14615625).

190002943 is a wasteful number, since it uses less digits than its factorization.

190002943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14615624.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 190002943 is about 13784.1555055070. The cubic root of 190002943 is about 574.8926761255.

The spelling of 190002943 in words is "one hundred ninety million, two thousand, nine hundred forty-three".