199162645 has 8 divisors (see below), whose sum is σ = 260722080. Its totient is φ = 144845520.

The previous prime is 199162637. The next prime is 199162657. The reversal of 199162645 is 546261991.

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

It is not a de Polignac number, because 199162645 - 2³ = 199162637 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 1810515 + ... + 1810624.

It is an arithmetic number, because the mean of its divisors is an integer number (32590260).

Almost surely, 2^199162645 is an apocalyptic number.

It is an amenable number.

199162645 is a deficient number, since it is larger than the sum of its proper divisors (61559435).

199162645 is a wasteful number, since it uses less digits than its factorization.

199162645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3621155.

The product of its digits is 116640, while the sum is 43.

The square root of 199162645 is about 14112.4996014172. The cubic root of 199162645 is about 583.9862590202.

The spelling of 199162645 in words is "one hundred ninety-nine million, one hundred sixty-two thousand, six hundred forty-five".