190430017 has 2 divisors, whose sum is σ = 190430018. Its totient is φ = 190430016.

The previous prime is 190430011. The next prime is 190430029. The reversal of 190430017 is 710034091.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 167159041 + 23270976 = 12929^2 + 4824^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-190430017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 190429973 and 190430000.

It is not a weakly prime, because it can be changed into another prime (190430011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95215008 + 95215009.

It is an arithmetic number, because the mean of its divisors is an integer number (95215009).

Almost surely, 2^190430017 is an apocalyptic number.

It is an amenable number.

190430017 is a deficient number, since it is larger than the sum of its proper divisors (1).

190430017 is an equidigital number, since it uses as much as digits as its factorization.

190430017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 190430017 is about 13799.6382923611. The cubic root of 190430017 is about 575.3230869835.

The spelling of 190430017 in words is "one hundred ninety million, four hundred thirty thousand, seventeen".