1279245 has 16 divisors (see below), whose sum is σ = 2233152. Its totient is φ = 620160.

The previous prime is 1279211. The next prime is 1279249. The reversal of 1279245 is 5429721.

It is not a de Polignac number, because 1279245 - 2⁶ = 1279181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1279249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3712 + ... + 4041.

It is an arithmetic number, because the mean of its divisors is an integer number (139572).

2^1279245 is an apocalyptic number.

1279245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1279245 is a deficient number, since it is larger than the sum of its proper divisors (953907).

1279245 is a wasteful number, since it uses less digits than its factorization.

1279245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7772.

The product of its digits is 5040, while the sum is 30.

The square root of 1279245 is about 1131.0371346689. The cubic root of 1279245 is about 108.5553527016. Note that the first 3 decimals are identical.

The spelling of 1279245 in words is "one million, two hundred seventy-nine thousand, two hundred forty-five".