190775239 has 2 divisors, whose sum is σ = 190775240. Its totient is φ = 190775238.

The previous prime is 190775201. The next prime is 190775269. The reversal of 190775239 is 932577091.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-190775239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 190775195 and 190775204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190775269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95387619 + 95387620.

It is an arithmetic number, because the mean of its divisors is an integer number (95387620).

Almost surely, 2^190775239 is an apocalyptic number.

190775239 is a deficient number, since it is larger than the sum of its proper divisors (1).

190775239 is an equidigital number, since it uses as much as digits as its factorization.

190775239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 119070, while the sum is 43.

The square root of 190775239 is about 13812.1409998595. The cubic root of 190775239 is about 575.6705362128.

The spelling of 190775239 in words is "one hundred ninety million, seven hundred seventy-five thousand, two hundred thirty-nine".