1255198 has 8 divisors (see below), whose sum is σ = 2151792. Its totient is φ = 537936.

The previous prime is 1255187. The next prime is 1255201. The reversal of 1255198 is 8915521.

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

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 in 3 ways as a sum of consecutive naturals, for example, 44815 + ... + 44842.

It is an arithmetic number, because the mean of its divisors is an integer number (268974).

2^1255198 is an apocalyptic number.

1255198 is a deficient number, since it is larger than the sum of its proper divisors (896594).

1255198 is an equidigital number, since it uses as much as digits as its factorization.

1255198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89666.

The product of its digits is 3600, while the sum is 31.

The square root of 1255198 is about 1120.3561933600. The cubic root of 1255198 is about 107.8708446925.

The spelling of 1255198 in words is "one million, two hundred fifty-five thousand, one hundred ninety-eight".