1255151 has 4 divisors (see below), whose sum is σ = 1289112.
Its totient is φ = 1221192.
The previous prime is 1255147. The next prime is 1255153. The reversal of 1255151 is 1515521.
It is a happy number.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 1255151 - 22 = 1255147 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 (1255153) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16925 + ... + 16998.
It is an arithmetic number, because the mean of its divisors is an integer number (322278).
21255151 is an apocalyptic number.
1255151 is a deficient number, since it is larger than the sum of its proper divisors (33961).
1255151 is an equidigital number, since it uses as much as digits as its factorization.
1255151 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 33960.
The product of its digits is 250, while the sum is 20.
The square root of 1255151 is about 1120.3352176916.
The cubic root of 1255151 is about 107.8694982932.
The spelling of 1255151 in words is "one million, two hundred fifty-five thousand, one hundred fifty-one".