1255125 has 16 divisors (see below), whose sum is σ = 2089152. Its totient is φ = 669200.

The previous prime is 1255123. The next prime is 1255129. The reversal of 1255125 is 5215521.

It is not a de Polignac number, because 1255125 - 2¹ = 1255123 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255123) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1299 + ... + 2048.

It is an arithmetic number, because the mean of its divisors is an integer number (130572).

2^1255125 is an apocalyptic number.

1255125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1255125 is a deficient number, since it is larger than the sum of its proper divisors (834027).

1255125 is an equidigital number, since it uses as much as digits as its factorization.

1255125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3365 (or 3355 counting only the distinct ones).

The product of its digits is 500, while the sum is 21.

The square root of 1255125 is about 1120.3236139616. The cubic root of 1255125 is about 107.8687534622.

The spelling of 1255125 in words is "one million, two hundred fifty-five thousand, one hundred twenty-five".