127225199 has 4 divisors (see below), whose sum is σ = 129310920. Its totient is φ = 125139480.

The previous prime is 127225169. The next prime is 127225237. The reversal of 127225199 is 991522721.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127225199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127225169) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1042769 + ... + 1042890.

It is an arithmetic number, because the mean of its divisors is an integer number (32327730).

Almost surely, 2^127225199 is an apocalyptic number.

127225199 is a deficient number, since it is larger than the sum of its proper divisors (2085721).

127225199 is an equidigital number, since it uses as much as digits as its factorization.

127225199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2085720.

The product of its digits is 22680, while the sum is 38.

The square root of 127225199 is about 11279.4148341126. The cubic root of 127225199 is about 502.9494987024.

The spelling of 127225199 in words is "one hundred twenty-seven million, two hundred twenty-five thousand, one hundred ninety-nine".