199631229 has 8 divisors (see below), whose sum is σ = 304200000. Its totient is φ = 114074976.

The previous prime is 199631213. The next prime is 199631249. The reversal of 199631229 is 922136991.

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

It is not a de Polignac number, because 199631229 - 2⁴ = 199631213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199631209) 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, 4753104 + ... + 4753145.

It is an arithmetic number, because the mean of its divisors is an integer number (38025000).

Almost surely, 2^199631229 is an apocalyptic number.

It is an amenable number.

199631229 is a deficient number, since it is larger than the sum of its proper divisors (104568771).

199631229 is an equidigital number, since it uses as much as digits as its factorization.

199631229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9506259.

The product of its digits is 52488, while the sum is 42.

The square root of 199631229 is about 14129.0915843872. The cubic root of 199631229 is about 584.4438955213.

The spelling of 199631229 in words is "one hundred ninety-nine million, six hundred thirty-one thousand, two hundred twenty-nine".