199318461 has 8 divisors (see below), whose sum is σ = 270262560. Its totient is φ = 130626672.

The previous prime is 199318453. The next prime is 199318463. The reversal of 199318461 is 164813991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 199318461 - 2³ = 199318453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199318463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 562870 + ... + 563223.

It is an arithmetic number, because the mean of its divisors is an integer number (33782820).

Almost surely, 2^199318461 is an apocalyptic number.

It is an amenable number.

199318461 is a deficient number, since it is larger than the sum of its proper divisors (70944099).

199318461 is a wasteful number, since it uses less digits than its factorization.

199318461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1126155.

The product of its digits is 46656, while the sum is 42.

The square root of 199318461 is about 14118.0190182617. The cubic root of 199318461 is about 584.1385142842.

The spelling of 199318461 in words is "one hundred ninety-nine million, three hundred eighteen thousand, four hundred sixty-one".