1280125 has 48 divisors (see below), whose sum is σ = 2134080. Its totient is φ = 756000.

The previous prime is 1280119. The next prime is 1280129. The reversal of 1280125 is 5210821.

It is not a de Polignac number, because 1280125 - 2⁷ = 1279997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1280129) 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 47 ways as a sum of consecutive naturals, for example, 67366 + ... + 67384.

It is an arithmetic number, because the mean of its divisors is an integer number (44460).

2^1280125 is an apocalyptic number.

It is an amenable number.

1280125 is a deficient number, since it is larger than the sum of its proper divisors (853955).

1280125 is a wasteful number, since it uses less digits than its factorization.

1280125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59 (or 42 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 1280125 is about 1131.4260912671. The cubic root of 1280125 is about 108.5802389467.

Adding to 1280125 its reverse (5210821), we get a palindrome (6490946).

It can be divided in two parts, 1280 and 125, that multiplied together give a 4-th power (160000 = 20⁴).

The spelling of 1280125 in words is "one million, two hundred eighty thousand, one hundred twenty-five".