190306292909 has 2 divisors, whose sum is σ = 190306292910. Its totient is φ = 190306292908.

The previous prime is 190306292857. The next prime is 190306292921. The reversal of 190306292909 is 909292603091.

190306292909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 189989630884 + 316662025 = 435878^2 + 17795^2 .

It is an emirp because it is prime and its reverse (909292603091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 190306292909 - 2²⁴ = 190289515693 is a prime.

It is a super-2 number, since 2×190306292909² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190306292989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95153146454 + 95153146455.

It is an arithmetic number, because the mean of its divisors is an integer number (95153146455).

Almost surely, 2^190306292909 is an apocalyptic number.

It is an amenable number.

190306292909 is a deficient number, since it is larger than the sum of its proper divisors (1).

190306292909 is an equidigital number, since it uses as much as digits as its factorization.

190306292909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 472392, while the sum is 50.

The spelling of 190306292909 in words is "one hundred ninety billion, three hundred six million, two hundred ninety-two thousand, nine hundred nine".