193083209 has 6 divisors (see below), whose sum is σ = 212232090. Its totient is φ = 175530080.

The previous prime is 193083197. The next prime is 193083217. The reversal of 193083209 is 902380391.

It can be written as a sum of positive squares in only one way, i.e., 124657225 + 68425984 = 11165^2 + 8272^2 .

It is a de Polignac number, because none of the positive numbers 2^k-193083209 is a prime.

It is a super-2 number, since 2×193083209² = 74562251195475362, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (193083269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 797744 + ... + 797985.

It is an arithmetic number, because the mean of its divisors is an integer number (35372015).

Almost surely, 2^193083209 is an apocalyptic number.

It is an amenable number.

193083209 is a deficient number, since it is larger than the sum of its proper divisors (19148881).

193083209 is a wasteful number, since it uses less digits than its factorization.

193083209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1595751 (or 1595740 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 193083209 is about 13895.4384241736. The cubic root of 193083209 is about 577.9826954506.

The spelling of 193083209 in words is "one hundred ninety-three million, eighty-three thousand, two hundred nine".