199751214 has 32 divisors (see below), whose sum is σ = 436139424. Its totient is φ = 60618240.

The previous prime is 199751213. The next prime is 199751219. The reversal of 199751214 is 412157991.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199751213) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 11847 + ... + 23234.

It is an arithmetic number, because the mean of its divisors is an integer number (13629357).

Almost surely, 2^199751214 is an apocalyptic number.

199751214 is an abundant number, since it is smaller than the sum of its proper divisors (236388210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

199751214 is a wasteful number, since it uses less digits than its factorization.

199751214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35172.

The product of its digits is 22680, while the sum is 39.

The square root of 199751214 is about 14133.3369732700. The cubic root of 199751214 is about 584.5609621359.

The spelling of 199751214 in words is "one hundred ninety-nine million, seven hundred fifty-one thousand, two hundred fourteen".