199750249 has 8 divisors (see below), whose sum is σ = 213403040. Its totient is φ = 186411456.

The previous prime is 199750219. The next prime is 199750253. The reversal of 199750249 is 942057991.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 199750249 - 2²¹ = 197653097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 199750199 and 199750208.

It is not an unprimeable number, because it can be changed into a prime (199750219) 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, 77184 + ... + 79729.

It is an arithmetic number, because the mean of its divisors is an integer number (26675380).

Almost surely, 2^199750249 is an apocalyptic number.

199750249 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

199750249 is a deficient number, since it is larger than the sum of its proper divisors (13652791).

199750249 is a wasteful number, since it uses less digits than its factorization.

199750249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156999.

The product of its (nonzero) digits is 204120, while the sum is 46.

The square root of 199750249 is about 14133.3028340866. The cubic root of 199750249 is about 584.5600207946.

The spelling of 199750249 in words is "one hundred ninety-nine million, seven hundred fifty thousand, two hundred forty-nine".