199907162 has 24 divisors (see below), whose sum is σ = 375652116. Its totient is φ = 79083648.

The previous prime is 199907117. The next prime is 199907171. The reversal of 199907162 is 261709991.

It can be written as a sum of positive squares in 2 ways, for example, as 199346161 + 561001 = 14119^2 + 749^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77183 + ... + 79730.

Almost surely, 2^199907162 is an apocalyptic number.

199907162 is a deficient number, since it is larger than the sum of its proper divisors (175744954).

199907162 is a wasteful number, since it uses less digits than its factorization.

199907162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156942 (or 156935 counting only the distinct ones).

The product of its (nonzero) digits is 61236, while the sum is 44.

The square root of 199907162 is about 14138.8529237700. The cubic root of 199907162 is about 584.7130469850.

The spelling of 199907162 in words is "one hundred ninety-nine million, nine hundred seven thousand, one hundred sixty-two".