190330343209 has 2 divisors, whose sum is σ = 190330343210. Its totient is φ = 190330343208.

The previous prime is 190330343191. The next prime is 190330343219. The reversal of 190330343209 is 902343033091.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 189722967184 + 607376025 = 435572^2 + 24645^2 .

It is a cyclic number.

It is not a de Polignac number, because 190330343209 - 2²⁵ = 190296788777 is a prime.

It is not a weakly prime, because it can be changed into another prime (190330343219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95165171604 + 95165171605.

It is an arithmetic number, because the mean of its divisors is an integer number (95165171605).

Almost surely, 2^190330343209 is an apocalyptic number.

It is an amenable number.

190330343209 is a deficient number, since it is larger than the sum of its proper divisors (1).

190330343209 is an equidigital number, since it uses as much as digits as its factorization.

190330343209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52488, while the sum is 37.

The spelling of 190330343209 in words is "one hundred ninety billion, three hundred thirty million, three hundred forty-three thousand, two hundred nine".