199149069317 has 12 divisors (see below), whose sum is σ = 218914964940. Its totient is φ = 181031727360.

The previous prime is 199149069313. The next prime is 199149069331. The reversal of 199149069317 is 713960941991.

It can be written as a sum of positive squares in 2 ways, for example, as 71649370276 + 127499699041 = 267674^2 + 357071^2 .

It is not a de Polignac number, because 199149069317 - 2² = 199149069313 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199149069311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1925909 + ... + 2026677.

It is an arithmetic number, because the mean of its divisors is an integer number (18242913745).

Almost surely, 2^199149069317 is an apocalyptic number.

It is an amenable number.

199149069317 is a deficient number, since it is larger than the sum of its proper divisors (19765895623).

199149069317 is a wasteful number, since it uses less digits than its factorization.

199149069317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117124 (or 117113 counting only the distinct ones).

The product of its (nonzero) digits is 3306744, while the sum is 59.

The spelling of 199149069317 in words is "one hundred ninety-nine billion, one hundred forty-nine million, sixty-nine thousand, three hundred seventeen".