190794239 has 2 divisors, whose sum is σ = 190794240. Its totient is φ = 190794238.

The previous prime is 190794217. The next prime is 190794287. The reversal of 190794239 is 932497091.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-190794239 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 190794239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190794299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95397119 + 95397120.

It is an arithmetic number, because the mean of its divisors is an integer number (95397120).

Almost surely, 2^190794239 is an apocalyptic number.

190794239 is a deficient number, since it is larger than the sum of its proper divisors (1).

190794239 is an equidigital number, since it uses as much as digits as its factorization.

190794239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 190794239 is about 13812.8287834172. The cubic root of 190794239 is about 575.6896466193.

The spelling of 190794239 in words is "one hundred ninety million, seven hundred ninety-four thousand, two hundred thirty-nine".