127198 has 4 divisors (see below), whose sum is σ = 190800. Its totient is φ = 63598.

The previous prime is 127189. The next prime is 127207. The reversal of 127198 is 891721.

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

It is an interprime number because it is at equal distance from previous prime (127189) and next prime (127207).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31798 + ... + 31801.

It is an arithmetic number, because the mean of its divisors is an integer number (47700).

2¹²⁷¹⁹⁸ is an apocalyptic number.

127198 is a deficient number, since it is larger than the sum of its proper divisors (63602).

127198 is an equidigital number, since it uses as much as digits as its factorization.

127198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63601.

The product of its digits is 1008, while the sum is 28.

The square root of 127198 is about 356.6482861307. The cubic root of 127198 is about 50.2913654917.

It can be divided in two parts, 1271 and 98, that added together give a square (1369 = 37²).

The spelling of 127198 in words is "one hundred twenty-seven thousand, one hundred ninety-eight".