1280902 has 8 divisors (see below), whose sum is σ = 2195856. Its totient is φ = 548952.

The previous prime is 1280887. The next prime is 1280921. The reversal of 1280902 is 2090821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45733 + ... + 45760.

It is an arithmetic number, because the mean of its divisors is an integer number (274482).

2^1280902 is an apocalyptic number.

1280902 is a deficient number, since it is larger than the sum of its proper divisors (914954).

1280902 is an equidigital number, since it uses as much as digits as its factorization.

1280902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91502.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 1280902 is about 1131.7694111435. The cubic root of 1280902 is about 108.6022028908.

The spelling of 1280902 in words is "one million, two hundred eighty thousand, nine hundred two".