199228537 has 8 divisors (see below), whose sum is σ = 209537280. Its totient is φ = 189162480.

The previous prime is 199228529. The next prime is 199228541. The reversal of 199228537 is 735822991.

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 199228537 - 2³ = 199228529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199228517) 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, 58987 + ... + 62272.

It is an arithmetic number, because the mean of its divisors is an integer number (26192160).

Almost surely, 2^199228537 is an apocalyptic number.

It is an amenable number.

199228537 is a deficient number, since it is larger than the sum of its proper divisors (10308743).

199228537 is a wasteful number, since it uses less digits than its factorization.

199228537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121343.

The product of its digits is 272160, while the sum is 46.

The square root of 199228537 is about 14114.8339345527. The cubic root of 199228537 is about 584.0506549309.

The spelling of 199228537 in words is "one hundred ninety-nine million, two hundred twenty-eight thousand, five hundred thirty-seven".