1279125 has 32 divisors (see below), whose sum is σ = 2371200. Its totient is φ = 680400.

The previous prime is 1279123. The next prime is 1279133. The reversal of 1279125 is 5219721.

It is not a de Polignac number, because 1279125 - 2¹ = 1279123 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

1279125 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1279123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3186 + ... + 3564.

It is an arithmetic number, because the mean of its divisors is an integer number (74100).

2^1279125 is an apocalyptic number.

1279125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1279125 is a deficient number, since it is larger than the sum of its proper divisors (1092075).

1279125 is an equidigital number, since it uses as much as digits as its factorization.

1279125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403 (or 387 counting only the distinct ones).

The product of its digits is 1260, while the sum is 27.

The square root of 1279125 is about 1130.9840847687. The cubic root of 1279125 is about 108.5519582385.

The spelling of 1279125 in words is "one million, two hundred seventy-nine thousand, one hundred twenty-five".