190743609 has 8 divisors (see below), whose sum is σ = 290656960. Its totient is φ = 108996336.

The previous prime is 190743599. The next prime is 190743611. The reversal of 190743609 is 906347091.

190743609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 190743609 - 2¹³ = 190735417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (190743629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4541494 + ... + 4541535.

It is an arithmetic number, because the mean of its divisors is an integer number (36332120).

Almost surely, 2^190743609 is an apocalyptic number.

It is an amenable number.

190743609 is a deficient number, since it is larger than the sum of its proper divisors (99913351).

190743609 is an equidigital number, since it uses as much as digits as its factorization.

190743609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9083039.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 190743609 is about 13810.9959452604. The cubic root of 190743609 is about 575.6387196005.

The spelling of 190743609 in words is "one hundred ninety million, seven hundred forty-three thousand, six hundred nine".